CN105284059B - 减小信道估计开销的方法、设备和机器可读介质 - Google Patents
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Abstract
在一些示例中,公开减小与参考信号消耗的带宽量的方法、系统、设备和机器可读介质。在一些示例中,这是通过找出包含小区中的所有活动UE的最佳子空间,并向该子空间发送参考信号实现的。在一些示例中,在UE可利用二阶统计量来计算到最佳子空间的投影信道,随后可把所述投影信道反馈给eNodeB。到最佳子空间的投影信道可在UE和eNodeB被用于变换码本,并且利用接收到的投影信道的信道方向排列码字。
Description
优先权要求
本申请要求2013年12月26日提交的美国申请序列号14/141,206,和2013年6月28日提交的美国临时专利申请序列号61/841,230的优先权,上述申请均通过引用整体包含于此。
版权声明
本专利文献的一部分公开内容包含受版权保护的素材。版权所有人不反对任何人复制再现专利文献或专利公开,因为专利文献或专利公开出现在美国专利商标局文件或档案中,不过在别的方面保留所有版权。以下声明适用于在下面及在构成本专利文献的一部分的附图中说明的软件和数据:版权Intel,Inc.,保留所有权利。
技术领域
实施例涉及无线通信系统。一些实施例涉及用于多输入多输出(MIMO)无线通信系统的系统、方法、设备和机器可读介质。
背景技术
现代蜂窝通信系统利用与诸如蜂窝电话机的移动设备进行通信的基站。在一些示例中,基站和移动设备之间的空中接口可利用编码数据的方法。示例性方法包括正交频分复用(OFDM)方法和宽带码分多址(W-CDMA)等。
先进的无线系统可利用多输入多输出(MIMO)技术,其中多个发射天线和多个接收天线被用于产生利用多径环境的分离的空间流。
附图说明
在不一定按比例绘制的附图中,相同的数字描述不同视图中的相似组件。具有不同字母后缀的相同数字可表示相似组件的不同示例。附图以示例性的方式而非限制性的方式一般地示出在本专利文献中讨论的各种实施例。
图1示出在UE处理波束成形信道状态信息的方法的流程图。
图2是根据本公开的一些示例的在变换之前的码字的示图。
图3是根据本公开的一些示例的在变换之后的码字的示图。
图4表示根据本公开的一些示例的在UE和eNodeB之间传输的信号的流程图。
图5表示根据本公开的一些示例的将到UE的参考信号波束成形的方法的流程图。
图6表示根据本公开的一些示例的eNodeB和UE的示意框图。
图7是示出可在其上实现一个或多个实施例的机器的示例性方框图。
具体实施方式
一种示例性OFDM MIMO无线网络是长期演进(LTE)无线网络。LTE的规范由第三代合作伙伴计划(3GPP)维护。在LTE中,基站被称为增强节点B(eNodeB),移动设备被称为用户设备(UE)。LTE版本12中的研究项目之一是全维度MIMO(FD-MIMO)的利用。在FD-MIMO系统中,eNodeB具有许多天线(例如,大于或等于8),其用于波束成形到UE的分离的空间流。在用频率分隔eNodeB和UE之间的空中接口的上行链路信道和下行链路信道的频分双工(FDD)模式下,在eNodeB处需要下行链路信道信息,以便能够波束成形到UE的下行链路数据。通过从eNodeB向UE发送参考信号,可在eNodeB处获得该信道信息。UE随后利用参考信号来测量下行链路信道。根据这些测量结果,UE可量化信道方向和振幅,并把这些测量结果回送给eNodeB。
在目前的LTE系统中,用于这些参考信号的开销随着天线的数目而线性增大。对于具有大量天线的系统,例如FD-MIMO,该开销变得高得惊人。
在一些示例中公开的是减小与这些参考信号相关的开销的数量的方法、系统、设备和机器可读介质。在一些示例中,通过找出包含小区中的所有活动UE的最佳子空间,并将参考信号仅发送给该子空间来达到上述效果。在一些示例中,UE可利用二阶统计量来计算到最佳子空间的投影信道。UE随后可将其反馈给eNodeB。到最佳子空间的投影信道可在UE和eNodeB处被使用以变换码本,并且利用接收到的投影信道的信道方向排列码字。其减少了信道方向量化方面的量化误差,从而改善系统性能。
全空间的维度可高达在eNodeB处的天线的数目,该数目可以非常大。事实上,在该全空间中,由eNodeB发送的信号经少量的波束成形方向只能够到达少量的活动UE,而其它波束成形方向是无用的并且引起干扰。在有用的波束成形方向被限制的条件下,信道训练资源,例如,信道状态信息-参考信号(CSI-RS)只可在这些方向周围进行部署,以便开销更低和效率更高。这可通过波束成形到被所有活动UE或一部分的活动UE跨越的信号子空间的信道训练信号来实现。由于信号子空间的维度主要由活动UE的数目确定,因此所需的训练资源,例如天线端口的数目较小。
为了波束成形到UE的信道训练信号(例如,CSI-RS),需要知道波束成形方向。根据在先的UE信道状态反馈,可估计这些方向。例如,根据由反馈的波束成形向量形成的矩阵的奇异值分解,可以计算信号子空间。注意由于移动信道随时间变化,因此UE可能脱离初始的波束成形方向。为了解决该问题,在一些示例中,eNodeB可定期跟踪信道变化。
在初始训练阶段期间,在各个UE处,估计在一个小区中的UE的下行链路(DL)信道。估计的活动UE的DL信道随后被反馈给eNodeB,在eNodeB处收集反馈的DL信道。之后,计算包含这些信道的几乎所有能量的最佳子空间。随后通过不断地扫描该最佳子空间的一部分,并偶尔扫描该子空间的剩余部分(以捕捉UE的DL信道中的突然变化),利用该信息优化将来的DL训练和减小信号开销。
系统模型
用OFDM符号t和子载波n表示的从eNodeB到UEk的信道可被表述成:
其中em=(0,0,...,0,1,0,0,...,0)T,第m个位置为1,其它位置为0,wm向量是单位规范向量,并且是正交的。为了压缩信道,将维度从M降到D(D<M),必须找出最佳的基底w1,...,wM,使得当m>D时,gk,m[n]≈0。然后,当d=l,2,...,D时,系数gk,m[n,t]由给出。
在eNODEB处波束成形参考信号
根据上面所述可显然看出,代替利用M个参考信号来估计初始的M维空间中的信道并反馈该信息,eNodeB可以只采用D个参考信号。通过利用w1,...,wD来波束形成这些参考信号,每个UE能够直接估计系数gk,d[n],并将该信息发送给eNodeB。通过利用这种方法,开销量被减小到原来的D/M。此外,UE不必知道波束成形向量,对UE来说,该处理完全透明。为了获得每个小区的最佳子空间,在第q个训练阶段结束时,估计信道协方差矩阵:
其中在术语OFDM符号中,T是在eNodeB处用于采样协方差矩阵计算的训练周期的长度,Uq是M×M酉矩阵,以及Λq是本征值uq,1,...,λq,D的对角矩阵。假定λq,1≥…≥λq,D≥λD+1≈…≈λM≈0。然后,最佳的D维子空间的基底将是{uq,1,...,uq,D},其中uq,d是Uq的第d列,即,与第d个最强本征值对应的本征向量。
如前所述,向量{uq,1,...,uq,D}可用于波束成形参考信号。但是,如前所述,为了跟踪信道中的突然变化以及信道可能在该子空间之外的情况,eNodeB可偶尔扫描与该D维最佳子空间正交的其它方向,即,uq,D+1,...,uq,M。因此,在参考信号传输期间,eNodeB可总是利用uq,1,...,uq,D-r波束形成D-r个参考信号,利用从uq,D-r+1,...,uq,M中选择的r个向量来波束形成剩余的r个参考信号,以便覆盖M维空间的剩余部分。
在UE处的信道状态信息
现在参见图1,根据一些示例示出在UE处理波束成形信道状态信息的方法1000的流程图。在操作1010,UE接收波束成形的参考信号。
在接收波束成形的参考信号之后,在操作1020,每个UE估计新空间中的投影信道系数:
随后,获得投影信道方向:
在操作1030,为了量化该方向,每个UE利用由下式给出的“投影”信道的协方差矩阵来变换其码本(3GPP LTE码本或任何其它码本):
从而,如下给出新的码字:
其中cis和ci's分别是变换前和变换后的码字。图2示出在变换之前的码字,以及图3示出在变换之后的码字。箭头2010和3010表示投影信道的方向,而箭头2020和3020表示量化的投影信道方向。每个UE在操作1030,计算其变换码本,并在操作1040,利用其变换码本量化投影信道方向。例如,这可通过使内积达到最大来实现:
在其它示例中,这可基于最大化容量等来实现。在操作1050,最佳码字的索引连同信道质量指示(CQI-代表SINR)被发送给eNodeB(预编码矩阵指示(PMI)),以使eNB能够重构信道。
注意,由于协方差矩阵Rk'取决于UE并且在eNodeB是未知的,因此每个UE必须量化该矩阵。这可以以不同的方式进行,例如利用矩阵元素的标量量化来实现。在量化之后,在操作1060,每个UE把它自己的协方差矩阵反馈给eNodeB。这向系统引入一些额外的开销。但是,通过采用协方差矩阵的结构,例如通过仅仅量化和反馈矩阵的上三角元素或下三角元素,可以减小该开销。此外,与瞬时信道本身相比,信道的二阶统计量以慢得多的速率变化。因此,与PMI和CQI相比,能够以极度低的频率发送该额外的反馈。
图4示出根据本公开的一些示例的在UE和eNodeB之间传输信号4000的流程图。在操作4010,eNodeB发送波束成形的参考信号。移动设备计算PMI和CQI。在操作4020,UE将PMI和CQI发送给eNodeB。在操作4030,UE将量化的协方差矩阵发送给eNodeB以重构信道。在一些示例中,操作4030可在各个时间发生(例如,不一定在计算和发送PMI和CQI之后立即发生)。
在eNODEB处的信道重构
eNodeB重构在初始的M维空间中的信道:
现在参见图5,根据本公开的一些示例示出波束成形到UE的参考信号的方法5000的流程图。在操作5010,计算最佳信号子空间。这可以基于由UE发送的在先参考信号。在操作5020,参考信号被波束成形到最佳信号子空间。在操作5030,从UE反馈到最佳子空间的投影信道。在操作5040,该反馈信息被eNodeB使用以变换码本,并且利用接收到的投影信道的信道方向排列码字。在操作5050,码本和码字被使用以发送给UE。
现在参见图6,示出根据本公开的一些示例的eNodeB 6010和UE 6060的示意框图。eNodeB 6010包括信号子空间计算模块6020,其确定包含小区中的活动UE的最佳信号子空间。eNodeB 6010包括参考信号输出模块6030,其配置成将波束成形的参考信号发送到最佳信号子空间。eNodeB 6010包括上行链路接收模块6040,其配置成从小区中的一个或多个活动UE接收到最佳信号子空间的投影信道。eNodeB还包括变换模块6050,其配置成变换码本,并且利用接收到的投影信道的信道方向排列码字。
UE 6060可包括参考信号接收模块6070,其配置成接收从eNodeB发送的波束成形的参考信号。UE 6060可包括估计模块6080,其配置成估计投影信道系数和方向。UE 6060还可包括变换模块6090,其配置成利用投影信道系数和方向的协方差矩阵来变换码本。UE6060还可包括量化模块6100,其配置成量化投影信道方向。UE 6060还可包括反馈模块6110,其配置成基于协方差矩阵来计算预编码矩阵指示和信道质量指示,以及将预编码矩阵指示和从协方差矩阵计算出的量化协方差矩阵发送给eNodeB。
UE 6060和eNodeB 6010可包括未示出的其它模块以提供另外的功能。此外,图6中所示的模块是示例的,可提供另外的功能。另外,受益于申请人的公开内容的本领域普通技术人员将会理解可不同于关于图6所示和描述地组织各个模块的功能。
尽管本文利用LTE系统的实践以示例方式示出了实施例,但是,受益于申请人的公开内容的本领域普通技术人员会注意到该技术对于在MIMO情况下利用信道状态反馈的其它先进无线系统的适用性。其它示例系统可包括电气和电子工程师(IEEE)802.11标准(例如802.11n-2009或802.1lac),IEEE 802.16(Wi-Max),蓝牙等。
机器示例
图7示出可在其上进行本文论述的任意一种或多种技术(例如,方法)的示例性机器7000的方框图。例如,机器可配置成实现图6的模块或者图1和5中所示的方法。在可选择的实施例中,机器7000可作为单机工作,或者可连接(例如,连网)到其它机器。在连网部署中,机器7000可作为服务器-客户端网络环境中的服务器机器和/或客户端机器。在示例中,机器7000可充当点对点(P2P)(或其它分布式)网络环境中的对等机器。机器7000可以是个人计算机(PC)、平板PC、机顶盒(STB)、个人数字助手(PDA)、移动电话机(例如,UE)、web设备、网络路由器、交换机或桥接器、eNodeB或者能够执行由所述机器采取的指定动作的指令(顺序的或者别的方式)的任何机器。此外,尽管只示出了一个机器,但是术语“机器”还应被理解成包括机器的任意集合,其中该机器单独或者联合地执行一组(或多组)指令,以执行本文讨论的任意一种或多种方法,例如云计算、软件即服务(SaaS)、其它计算机集群结构。
如本文所述,示例可包括逻辑或多个组件、模块或机构,或者在该逻辑或多个组件、模块或机构上操作。模块是能够进行指定操作的有形实体(例如,硬件),并且可按某种方式配置或布置。在示例中,电路可按指定方式布置(例如,在内部,或者相对于诸如其它电路的外部实体)成模块。在示例中,一个或多个计算机系统(例如,单机、客户端或服务器计算机系统)或者一个或多个硬件处理器的整体或部分可由固件或软件(例如,指令,应用程序部分或者应用程序)配置成执行指定操作的模块。在示例中,软件可驻留在机器可读介质上。在示例中,当软件由模块的底层硬件执行时,该软件使硬件执行指定的操作。
因而,术语“模块”被理解成包含有形实体,其是物理构成的、特别配置的(例如,硬连线)或者临时(例如瞬间)配置的(例如,编程)以按指定方式操作或者执行本文描述的部分或所有任意操作的实体。考虑模块被临时配置的示例,各个模块不必在任何一个时刻都被示出。例如,在模块包含利用软件配置的通用硬件处理器的情况下,通用硬件处理器可在不同时间,被配置成相应的不同模块。因而,软件可相应地配置硬件处理器,以在一个示例性时刻构成特定模块,并且在不同的示例性时刻构成不同的模块。
机器(例如,计算机系统)7000可包括硬件处理器7002(例如,中央处理器(CPU)、图形处理器(GPU)、硬件处理器核芯或者它们的任意组合)、主存储器7004和静态存储器7006,它们中的一些或全部可通过互连链路(例如,总线)7008相互通信。机器7000还可包括显示单元7010、字母数字输入设备7012(例如,键盘)和用户界面(UI)导航设备7014(例如,鼠标)。在示例中,显示单元7010、输入设备7012和UI导航设备7014可以是触摸屏显示器。机器7000另外可包括存储设备(例如,驱动单元)7016、信号发生设备7018(例如,扬声器)、网络接口设备7020、和一个或多个传感器7021,例如全球定位系统(GPS)传感器、指南针、加速计或者其它传感器。机器7000可包括输出控制器7028,例如串行(例如,通用串行总线(USB)、并行或其它有线或无线(例如红外(IR),近场通信(NFC)等)连接,以与一个或多个外围设备(例如,打印机、读卡器等)通信,或者控制该一个或多个外围设备。
存储设备7016可包括机器可读介质7022,其上存储有一组或多组数据结构或指令7024(例如,软件),该数据结构或指令7024实施本文描述的任意一种或多种技术或功能或由该技术或功能利用。在由机器7000执行指令7024期间,该指令7024也可完全或至少部分驻留在主存储器7004内,驻留在静态存储器7006内,或者驻留在硬件处理器7002内。在示例中,硬件处理器7002、主存储器7004、静态存储器7006或存储设备7016之一或任意组合可构成机器可读介质。
尽管机器可读介质7022被例示成单一介质,不过,术语“机器可读介质”可包括配置成保存一个或多个指令7024的单一介质或多个介质(例如,集中式或分布式数据库,和/或相关的高速缓存和服务器)。
术语“机器可读介质”可包括能够保存、编码或承载由机器7000执行的指令,并且使机器7000实现本公开的任意一种或多种技术,或者能够保存、编码或承载由所述指令使用或者与所述指令相关的数据结构的任意介质。非限制性机器可读介质示例可包括固态存储器以及光和磁介质。机器可读介质的具体示例包括:非易失性存储器,例如半导体存储器件(例如,电可编程只读存储器(EPROM)、电可擦可编程只读存储器(EEPROM))和闪存设备;磁盘,例如内部硬盘和可拆卸磁盘;磁光盘;随机存取存储器(RAM);及CD-ROM和DVD-ROM光盘。在一些示例中,机器可读介质可包括非临时性机器可读介质。在一些示例中,机器可读介质可包括不是短暂传播信号的机器可读介质。
指令7024还可利用许多传输协议(例如,帧中继、网际协议(IP)、传输控制协议(TCP)、用户数据报协议(UDP)、超文本传输协议(HTTP)等)中任意之一,经网络接口设备7020通过使用传输介质的通信网络7026进行发送和接收。示例性通信网络可包括:局域网(LAN)、广域网(WAN)、分组数据网络(例如,因特网)、移动电话网络(例如,蜂窝网络),普通老式电话(POTS)网络和无线数据网络(例如,称为的电气和电子工程师协会(IEEE)802.11族标准,称为的IEEE802.16族标准),IEEE 802.15.4族标准,点对点(P2P)网络等。在示例中,网络接口设备7020可包括:一个或多个物理插口(例如,以太网、同轴或电话插口),或者一个或多个天线以连接到通信网络7026。在示例中,网络接口设备7020可包括多个天线,以利用单输入多输出(SIMO)、多输入多输出(MIMO)或多输入单输出(MISO)技术中的至少一种进行无线通信。术语“传输介质”应被理解成包括能够保存、编码或承载由机器7000执行的指令的任何无形介质,并且包括数字或模拟通信信号,或者便利这种软件的通信的其它无形介质。
示例
下面是附加的示例。
例1包括减小信道估计开销的主题(例如,执行操作的方法、装置和包括指令的机器可读介质),包括:在形成小区的eNodeB:确定包含小区中的活动UE的最佳信号子空间;将波束成形的参考信号发送给最佳信号子空间;从小区中的活动UE中的至少一个活动UE接收到最佳信号子空间的投影信道;以及变换码本,并且利用接收到的投影信道的信道方向排列码字。
在例2中,如例1的主题可选地包括:其中发送参考信号包括发送信道状态信息参考信号。
在例3中,如例1-2中的任意一个或多个的主题可选地包括:其中发送参考信号和接收投影信道是利用正交频分复用协议完成的。
在例4中,如例1-3中的任意一个或多个的主题可选地包括:其中最佳信号子空间具有小于全信号子空间的维度。
在例5中,如例1-4中的任意一个或多个的主题可选地包括:其中发送参考信号包括将参考信号发送给小区中的活动UE。
在例6中,如例1-5中的任意一个或多个的主题可选地包括:通过扫描与最佳信号子空间正交的方向来确定最佳信号子空间中的变化。
在例7中,如例1-6中的任意一个或多个的主题可选地包括:其中确定最佳信号子空间包括在训练阶段结束时估计信道协方差矩阵。
例8包括或可选地与例1-7任意之一的主题结合,以包括主题(例如装置、设备或机器,例如eNodeB),其中该主题包括:信号子空间计算模块,其配置成:确定包含小区中的活动UE的最佳信号子空间;参考信号输出模块,其配置成:将波束成形的参考信号发送给最佳信号子空间;上行链路接收模块,其配置成:从小区中的活动UE中的至少一个活动UE接收到最佳信号子空间的投影信道;以及变换模块,其配置成:变换码本,并且利用接收到的投影信道的信道方向排列码字。
在例9中,如例1-8中的任意一个或多个的主题可选地包括:其中参考信号输出模块配置成通过至少被配置成发送信道状态信息参考信号来发送参考信号。
在例10中,如例1-9中的任意一个或多个的主题可选地包括:其中参考信号输出模块配置成至少利用正交频分复用协议来发送参考信号。
在例11中,如例1-10中的任意一个或多个的主题可选地包括:其中最佳信号子空间具有小于全信号子空间的维度。
在例12中,如例1-11中的任意一个或多个的主题可选地包括:其中参考信号输出模块配置成通过至少被配置成将参考信号发送给小区中的活动UE来发送参考信号。
在例13中,如例1-12中的任意一个或多个的主题可选地包括:其中最佳子空间计算模块配置成通过扫描与最佳信号子空间正交的方向来确定最佳信号子空间中的变化。
在例14中,如例1-13中的任意一个或多个的主题可选地包括:其中最佳子空间计算模块配置成通过至少被配置成在训练阶段结束时估计信道协方差矩阵来确定最佳信号子空间。
例15包括或可选地与例1-14任意之一的主题结合,以包括主题(例如装置、设备或机器,例如UE),该主题包括:参考信号接收模块,其配置成接收从eNodeB发送的波束成形的参考信号;估计模块,其配置成估计投影信道系数和方向;变换模块,其配置成利用投影信道系数和方向的协方差矩阵来变换码本;量化模块,其配置成量化投影信道方向;反馈模块,其配置成:基于协方差矩阵来计算预编码矩阵指示和信道质量指示;以及将预编码矩阵指示和从协方差矩阵计算的量化协方差矩阵发送给eNodeB。
在例16中,如例1-15中的任意一个或多个的主题可选地包括:其中反馈模块配置成通过至少被配置成以下的方案来计算量化的协方差矩阵:通过协方差矩阵的元素的标量量化,基于协方差矩阵来计算量化的协方差矩阵。
在例17中,如例1-16中的任意一个或多个的主题可选地包括:其中反馈模块配置成通过至少被配置成只量化矩阵的上三角元素和下三角元素中的一个元素,基于协方差矩阵来计算量化的协方差矩阵。
例18包括或可选地与例1-17任意之一的主题结合,以包括主题(例如执行操作的方法、装置、包括指令的机器可读介质),该主题包括:接收从eNodeB发送的波束成形的参考信号;估计投影信道系数和方向;利用投影信道系数和方向的协方差矩阵来变换码本;量化投影信道方向;基于协方差矩阵来计算预编码矩阵指示和信道质量指示;以及将预编码矩阵指示和从协方差矩阵计算出的量化的协方差矩阵发送给eNodeB。
在例19中,如例1-18中的任意一个或多个的主题可选地包括:接收从eNodeB发送的波束成形的参考信号;估计投影信道系数和方向;利用投影信道系数和方向的协方差矩阵来变换码本;量化投影信道方向;根据协方差矩阵来计算预编码矩阵指示和信道质量指示;以及将预编码矩阵指示和从协方差矩阵计算的量化的协方差矩阵发送给eNodeB。
Claims (12)
1.一种减小信道估计开销的方法,所述方法包括:
在形成小区的eNodeB处:
确定包含小区中的所有活动UE的最佳信号子空间;
将波束成形的参考信号发送到最佳信号子空间;
从小区中的活动UE中的至少一个活动UE接收至所述最佳信号子空间的投影信道;以及
变换码本,并且利用所接收到的投影信道的信道方向排列码字,
其中所述最佳信号子空间具有小于全信号子空间的维度,并且
其中发送参考信号包括将所述参考信号发送给所述小区中的活动UE,
所述方法还包括:通过扫描与所述最佳信号子空间正交的方向来确定所述最佳信号子空间中的变化,以跟踪信道中的突然变化以及信道在所述最佳信号子空间之外的情况。
2.根据权利要求1所述的方法,其中发送参考信号包括发送信道状态信息参考信号。
3.根据权利要求1所述的方法,其中发送参考信号和接收所述投影信道是利用正交频分复用协议完成的。
4.根据权利要求1所述的方法,其中确定所述最佳信号子空间包括在训练阶段结束时估计信道协方差矩阵。
5.一种存储指令的机器可读介质,当所述指令被机器执行时,所述指令使所述机器执行权利要求1到4中任一项或多项的操作。
6.一种eNodeB,包括:
信号子空间计算模块,其配置成:确定包含小区中的所有活动UE的最佳信号子空间;
参考信号输出模块,其配置成:将波束成形的参考信号仅发送到最佳信号子空间;
上行链路接收模块,其配置成:从小区中的活动UE中的至少一个活动UE接收至所述最佳信号子空间的投影信道;以及
变换模块,其配置成:变换码本,并且利用所接收到的投影信道的信道方向排列码字,
其中所述最佳信号子空间具有小于全信号子空间的维度,
其中所述参考信号输出模块配置成:通过至少被配置成将所述参考信号发送给所述小区中的活动UE来发送所述参考信号,
其中所述信号子空间计算模块配置成:通过扫描与所述最佳信号子空间正交的方向来确定所述最佳信号子空间中的变化,以跟踪信道中的突然变化以及信道在所述最佳信号子空间之外的情况。
7.根据权利要求6所述的eNodeB,其中所述参考信号输出模块配置成:通过至少被配置成发送信道状态信息参考信号来发送参考信号。
8.根据权利要求6所述的eNodeB,其中所述参考信号输出模块配置成:至少利用正交频分复用协议来发送所述参考信号。
9.根据权利要求6所述的eNodeB,其中所述信号子空间计算模块配置成:通过至少被配置成在训练阶段结束时估计信道协方差矩阵来确定所述最佳信号子空间。
10.一种用户设备UE,包括:
参考信号接收模块,其配置成接收从eNodeB发送的波束成形的参考信号;
估计模块,其配置成估计投影信道系数和方向;
变换模块,其配置成利用所述投影信道系数和方向的协方差矩阵来变换码本;
量化模块,其配置成量化所述投影信道方向;
反馈模块,其配置成:基于所述协方差矩阵来计算预编码矩阵指示和信道质量指示;以及
将所述预编码矩阵指示和从所述协方差矩阵计算出的量化协方差矩阵发送给eNodeB,
其中反馈模块配置成通过至少被配置成以下的方案来计算量化的协方差矩阵:通过所述协方差矩阵的元素的标量量化,基于所述协方差矩阵来计算量化的协方差矩阵,
其中反馈模块被配置成通过至少被配置成只量化所述矩阵的上三角元素和下三角元素中的一个元素,基于所述协方差矩阵来计算量化的协方差矩阵。
11.一种减小信道估计开销的方法,包括:
接收从eNodeB发送的波束成形的参考信号;
估计投影信道系数和方向;
利用所述投影信道系数和方向的协方差矩阵来变换码本;
量化所述投影信道方向;
基于所述协方差矩阵来计算预编码矩阵指示和信道质量指示;以及
将所述预编码矩阵指示和从所述协方差矩阵计算出的量化的协方差矩阵发送给eNodeB,
其中从所述协方差矩阵计算量化的协方差矩阵包括:通过所述协方差矩阵的元素的标量量化并且只量化所述矩阵的上三角元素和下三角元素中的一个元素,基于所述协方差矩阵来计算量化的协方差矩阵。
12.一种保存指令的机器可读介质,当所述指令被机器执行时,所述指令使所述机器执行根据权利要求11所述的方法的操作。
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Families Citing this family (144)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007041845A1 (en) * | 2005-10-12 | 2007-04-19 | Nortel Networks Limited | Multi-user mimo systems and methods |
KR101606451B1 (ko) * | 2011-02-11 | 2016-03-28 | 노키아 솔루션스 앤드 네트웍스 오와이 | 미리결정된 송신 방향들에 대해 예약된 서브 프레임들을 이용한 다중 반송파들 상에서의 tdd 데이터 송신 |
EP2947912A4 (en) * | 2013-01-15 | 2016-08-24 | Fujitsu Ltd | METHOD, DEVICE AND SYSTEM FOR TREATING FUNCTIONS BETWEEN BASE STATIONS |
CN104066093B (zh) * | 2013-03-18 | 2018-03-23 | 财团法人工业技术研究院 | 无线通信系统的干扰管理方法、锚点设备、基站及其系统 |
WO2014202556A1 (en) * | 2013-06-19 | 2014-12-24 | Nokia Solutions And Networks Oy | Methods, apparatuses, and computer program products for providing dynamic uplink-downlink reconfiguration information to user equipments |
US9794870B2 (en) | 2013-06-28 | 2017-10-17 | Intel Corporation | User equipment and method for user equipment feedback of flow-to-rat mapping preferences |
US9814037B2 (en) | 2013-06-28 | 2017-11-07 | Intel Corporation | Method for efficient channel estimation and beamforming in FDD system by exploiting uplink-downlink correspondence |
US10237020B2 (en) | 2013-07-19 | 2019-03-19 | Sharp Kabushiki Kaisha | Systems and methods for carrier aggregation |
EP3232600B1 (en) * | 2013-07-29 | 2020-02-19 | Sun Patent Trust | Dynamic tdd ul/dl configuration in heterogeneous networks |
CA2920638C (en) | 2013-08-07 | 2022-01-04 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving resource allocation information in a wireless communication system |
CN104737579A (zh) * | 2013-08-09 | 2015-06-24 | 华为技术有限公司 | 测量方法及装置,信息交互方法及装置,驻留方法及装置技术领域 |
CN103650400B (zh) * | 2013-08-21 | 2017-06-13 | 华为技术有限公司 | 一种选择预编码矩阵指示的方法、装置及系统 |
CN105474556B (zh) * | 2013-09-05 | 2019-10-22 | 英特尔公司 | 用于空间区域的适应性扇区化的节点、方法和系统 |
US9526112B2 (en) | 2013-09-30 | 2016-12-20 | Apple Inc. | Control signaling optimization for LTE communications |
CN105684519B (zh) * | 2013-10-28 | 2019-04-05 | Lg电子株式会社 | 用于无线通信的方法和设备 |
CN104602328A (zh) * | 2013-10-31 | 2015-05-06 | 电信科学技术研究院 | 一种配置drx和监听控制信道的方法、系统及设备 |
US20150139001A1 (en) * | 2013-11-20 | 2015-05-21 | Feng Xue | Method and apparatus for beam identification in multi-antenna systems |
US9661657B2 (en) * | 2013-11-27 | 2017-05-23 | Intel Corporation | TCP traffic adaptation in wireless systems |
EP3079407A4 (en) * | 2013-12-04 | 2017-06-14 | LG Electronics Inc. | Method for transceiving system information in cloud wireless communication system and apparatus therefor |
US10582492B2 (en) * | 2013-12-18 | 2020-03-03 | Lg Electronics Inc. | Method for transmitting and receiving signal by terminal in wireless communication system and apparatus therefor |
DK3085161T3 (da) * | 2013-12-19 | 2019-11-04 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Netværksadgang via et andet trådløst netværk |
CN105264985B (zh) * | 2013-12-20 | 2019-04-19 | 华为技术有限公司 | 传输信息的方法、用户设备和基站 |
WO2015111325A1 (ja) * | 2014-01-22 | 2015-07-30 | シャープ株式会社 | ユーザ装置、基地局装置、集積回路、および、通信方法 |
KR102169662B1 (ko) * | 2014-03-10 | 2020-10-23 | 삼성전자주식회사 | 무선 통신 시스템에서 빔 결정 장치 및 방법 |
EP3120468B1 (en) | 2014-03-18 | 2020-08-19 | Sharp Kabushiki Kaisha | Scheduling wireless device-to-device communications |
WO2015142898A1 (en) | 2014-03-18 | 2015-09-24 | Sharp Laboratories Of America, Inc. | Device-to-device communications apparatus and methods |
WO2015139773A1 (en) * | 2014-03-21 | 2015-09-24 | Nokia Solutions And Networks Oy | Resource release for proximity-based communications |
CN111601400B (zh) * | 2014-03-24 | 2023-12-08 | 三星电子株式会社 | 用于在连接状态中监视设备对设备传输的装置和方法 |
KR102177553B1 (ko) * | 2014-03-27 | 2020-11-11 | 삼성전자주식회사 | 다중 사용자 지원을 위한 빔포밍 방법 및 장치 |
EP3138335B1 (en) * | 2014-05-01 | 2023-12-20 | Sharp Kabushiki Kaisha | Device-to-device communications apparatus and method |
WO2015171202A1 (en) | 2014-05-08 | 2015-11-12 | Sharp Laboratories Of America, Inc. | Device-to device communications apparatus and methods |
CN106465091B (zh) * | 2014-05-09 | 2020-05-26 | 德国电信股份公司 | 用于改善装置间通信的方法、用户设备、系统和移动通信网络 |
ES2828252T3 (es) * | 2014-05-09 | 2021-05-25 | Deutsche Telekom Ag | Mejora o habilitación de la cobertura por radio para un equipo de usuario con respecto a una red de comunicación móvil |
US9749098B2 (en) * | 2014-05-09 | 2017-08-29 | Electronics And Telecommunications Research Institute | Method and apparatus for transmitting and receiving system information in mobile communication system |
WO2015191835A1 (en) | 2014-06-11 | 2015-12-17 | Convida Wireless, Llc | Mapping service for local content redirection |
KR102333401B1 (ko) * | 2014-08-01 | 2021-11-30 | 엘지전자 주식회사 | 채널 상태 보고를 위한 방법 및 이를 위한 장치 |
US9509486B2 (en) * | 2014-08-04 | 2016-11-29 | Qualcomm Incorporated | Techniques for indicating a frame format for transmissions using unlicensed radio frequency spectrum bands |
US9860860B2 (en) | 2014-08-06 | 2018-01-02 | Sharp Kabushiki Kaisha | Synchronization signals for device-to-device communcations |
WO2016032007A1 (ja) | 2014-08-29 | 2016-03-03 | 株式会社 東芝 | 無線通信用集積回路、無線通信端末および無線通信方法 |
US10044414B2 (en) * | 2014-10-10 | 2018-08-07 | Nokia Solutions And Networks Oy | Methods and apparatus for coordinated multipoint communication |
US10135508B2 (en) * | 2014-10-13 | 2018-11-20 | Electronics And Telecommunications Research Institute | Method and apparatus for generating common signal in multiple input multiple output system |
US20160112907A1 (en) * | 2014-10-16 | 2016-04-21 | Qualcomm Incorporated | User equipment based pseudo-reselection |
CN106716857B (zh) * | 2014-10-17 | 2020-04-03 | 华为技术有限公司 | 无线通信方法及系统 |
US20160142897A1 (en) * | 2014-11-14 | 2016-05-19 | Telefonaktiebolaget L M Ericsson (Publ) | Enriched D2D Discovery Content |
WO2016089122A1 (ko) * | 2014-12-02 | 2016-06-09 | 엘지전자 주식회사 | 무선 통신 시스템에서 하이브리드 빔포밍을 기반으로 제어 채널을 전송하는 방법 및 장치 |
US10219279B2 (en) * | 2015-01-14 | 2019-02-26 | Qualcomm Incorporated | Signaling to request increased transmission power limit in an emergency |
KR102355785B1 (ko) * | 2015-01-19 | 2022-01-26 | 삼성전자주식회사 | 무선 통신 시스템에서 협력 전송을 위한 제어 정보 송신 장치 및 방법 |
US10516517B2 (en) * | 2015-01-29 | 2019-12-24 | Intel IP Corporation | System and methods for support of frequency hopping for UEs with reduced bandwidth support |
JP2018050093A (ja) * | 2015-02-03 | 2018-03-29 | シャープ株式会社 | 無線受信装置、無線送信装置、通信方法および通信システム |
KR102314442B1 (ko) * | 2015-02-06 | 2021-10-19 | 삼성전자주식회사 | D2d 네트워크에서 ue 디스커버리 방법 및 시스템 |
US10382110B2 (en) * | 2015-03-11 | 2019-08-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive user-specific beam forming |
CN107466461B (zh) * | 2015-03-27 | 2021-04-02 | 瑞典爱立信有限公司 | 用于为信道状态信息参考信号传送选择波束参考信号的系统和方法 |
KR102302259B1 (ko) * | 2015-03-31 | 2021-09-15 | 삼성전자주식회사 | 다중 안테나를 사용하는 시스템에서 채널을 추정하여 rf 빔을 선택하는 방법 및 장치 |
WO2016163821A1 (ko) * | 2015-04-08 | 2016-10-13 | 엘지전자 주식회사 | 무선 통신 시스템에서 단말에 의해 수행되는 디스커버리 어나운스먼트 방법 및 상기 방법을 이용하는 단말 |
KR102340796B1 (ko) | 2015-05-11 | 2021-12-17 | 삼성전자주식회사 | 단말기들의 통신 방법 및 그 단말기 |
US10356832B2 (en) | 2015-05-11 | 2019-07-16 | Qualcomm Incorporated | Introduction of powered relay for device-to-device communication |
US10834540B2 (en) | 2015-05-15 | 2020-11-10 | Lg Electronics Inc. | Method for providing broadcast service in wireless communication system, and apparatus therefor |
KR101943989B1 (ko) * | 2015-06-05 | 2019-01-30 | 삼성전자주식회사 | 데이터를 송수신하는 방법, 서버 및 단말기 |
CN106341171A (zh) | 2015-07-10 | 2017-01-18 | 北京三星通信技术研究有限公司 | 信道状态信息汇报的方法及装置 |
US10440550B2 (en) | 2015-08-06 | 2019-10-08 | Samsung Electronics Co., Ltd. | Method and apparatus for performing inter-carrier D2D communication |
US10681505B2 (en) | 2015-08-12 | 2020-06-09 | Samsung Electronics Co., Ltd | Method and apparatus for performing direct communication with at least one other user equipment |
WO2017034606A1 (en) * | 2015-08-27 | 2017-03-02 | Intel IP Corporation | Beam acquisition with receiving beamforming |
US9942906B1 (en) * | 2015-09-16 | 2018-04-10 | Sprint Spectrum L.P. | Systems and methods for determining a subframe configuration for an access node based on coverage |
CN106612546B (zh) * | 2015-10-27 | 2021-10-22 | 大唐移动通信设备有限公司 | 一种确定csi-rs传输资源的方法及设备 |
CN106851550B (zh) * | 2015-12-04 | 2020-02-14 | 华为技术有限公司 | 一种定位终端的方法以及基带单元 |
CN106911369A (zh) * | 2015-12-21 | 2017-06-30 | 华为技术有限公司 | 下行信道重构方法以及装置 |
EP3407666B1 (en) * | 2016-01-19 | 2022-08-31 | LG Electronics Inc. | Method for resuming connection in wireless communication system and device for same |
EP3417550B1 (en) * | 2016-02-15 | 2020-06-03 | Telefonaktiebolaget LM Ericsson (publ) | Adaptive beam selection in a wireless communication system |
CN114448592B (zh) * | 2016-03-01 | 2023-12-29 | 苹果公司 | 5g系统中的自包含tdd帧结构和dl-ul配置 |
CN107222288B (zh) * | 2016-03-22 | 2020-12-15 | 中国移动通信集团公司 | 一种无线传输方法及装置 |
CN109156032B (zh) * | 2016-05-10 | 2022-04-26 | 诺基亚技术有限公司 | 可靠和/或低延迟网络管理 |
CN107370562A (zh) * | 2016-05-13 | 2017-11-21 | 华为技术有限公司 | 传输下行控制信息的方法和装置 |
US10541741B2 (en) * | 2016-05-26 | 2020-01-21 | Qualcomm Incorporated | System and method for beam switching and reporting |
US10651899B2 (en) | 2016-05-26 | 2020-05-12 | Qualcomm Incorporated | System and method for beam switching and reporting |
US10181891B2 (en) | 2016-05-26 | 2019-01-15 | Qualcomm Incorporated | System and method for beam switching and reporting |
US10498406B2 (en) | 2016-05-26 | 2019-12-03 | Qualcomm Incorporated | System and method for beam switching and reporting |
WO2017206169A1 (en) * | 2016-06-03 | 2017-12-07 | Mediatek Singapore Pte. Ltd | Methods and appratus to support mobility through beam tracking in new radio access system |
US10985869B2 (en) * | 2016-07-19 | 2021-04-20 | Nec Corporation | Method and device for performing communication using a transmission pattern |
US10028110B2 (en) * | 2016-07-29 | 2018-07-17 | Blackberry Limited | Distributed control of a push-to-talk session |
CN112202541B (zh) * | 2016-08-04 | 2022-02-22 | 中兴通讯股份有限公司 | 一种信号传输方法及装置 |
CN107689839B (zh) | 2016-08-04 | 2020-09-22 | 中兴通讯股份有限公司 | 一种信号传输方法及装置 |
US10425139B2 (en) * | 2016-09-21 | 2019-09-24 | Samsung Electronics Co., Ltd. | Method and apparatus for beam management reference signals in wireless communication systems |
CN107872829B (zh) * | 2016-09-28 | 2021-08-20 | 华为技术有限公司 | 一种信号传输方法及相关设备 |
CN107889170A (zh) * | 2016-09-29 | 2018-04-06 | 中兴通讯股份有限公司 | 一种信号发送方法、接收方法及装置 |
EP3520527B1 (en) | 2016-09-30 | 2023-05-03 | QUALCOMM Incorporated | Multefire autonomous uplink channel clearance signaling |
WO2018058583A1 (en) * | 2016-09-30 | 2018-04-05 | Mediatek Singapore Pte. Ltd. | Methods and apparatus for indicating and implementing of new ue category |
US10582397B2 (en) * | 2016-11-09 | 2020-03-03 | Qualcomm Incorporated | Beam refinement reference signal transmissions during control symbol |
US10154496B2 (en) | 2016-11-10 | 2018-12-11 | Futurewei Technologies, Inc. | System and method for beamformed reference signals in three dimensional multiple input multiple output communications systems |
EP3322103A1 (en) * | 2016-11-10 | 2018-05-16 | Alcatel Lucent | Apparatus and method for a base station of a wireless communication system |
US10945151B2 (en) * | 2016-11-24 | 2021-03-09 | Huawei Technologies Co., Ltd. | Data transmission rate control method and device |
US10219296B2 (en) * | 2016-12-07 | 2019-02-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Decoupled downlink reception and uplink reception in a mixed licensed carrier and unlicensed carrier wireless communication system |
TWI632803B (zh) | 2016-12-16 | 2018-08-11 | 財團法人工業技術研究院 | 通道資訊傳輸方法及應用其的無線通訊系統 |
CN108288991B (zh) | 2017-01-09 | 2023-05-09 | 中兴通讯股份有限公司 | 波束信息、配置信息的反馈方法及装置 |
US10404433B2 (en) * | 2017-01-31 | 2019-09-03 | Qualcomm Incorporated | Matrix-based techniques for mapping resource elements to ports for reference signals |
US10575361B2 (en) * | 2017-01-31 | 2020-02-25 | Apple Inc. | Fast switching between control channels during radio resource control connection |
US10512075B2 (en) * | 2017-02-02 | 2019-12-17 | Qualcomm Incorporated | Multi-link new radio physical uplink control channel beam selection and reporting based at least in part on physical downlink control channel or physical downlink shared channel reference signals |
WO2018141115A1 (zh) * | 2017-02-06 | 2018-08-09 | 广东欧珀移动通信有限公司 | 一种用于传输信号的方法、终端设备和网络设备 |
EP3580949B1 (en) * | 2017-02-13 | 2022-04-20 | Telefonaktiebolaget LM Ericsson (publ) | System and method for distributed coordination of duplex directions in a nr system |
US10727919B2 (en) * | 2017-02-28 | 2020-07-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Reporting of channel coefficients |
US10257769B2 (en) * | 2017-02-28 | 2019-04-09 | Hewlett Packard Enterprise Development Lp | Access point group transmissions |
CN106888042B (zh) * | 2017-03-01 | 2020-06-02 | 北京小米移动软件有限公司 | 基于波束赋形的波束选取方法及装置、基站和终端 |
US11595970B2 (en) | 2017-03-24 | 2023-02-28 | Qualcomm Incorporated | UE-specific slot structure configuration |
CN108632961B (zh) * | 2017-03-24 | 2022-08-19 | 北京三星通信技术研究有限公司 | 寻呼信息的接收方法及装置 |
CN108809369B (zh) * | 2017-05-05 | 2023-11-03 | 华为技术有限公司 | 无线通信的方法、网络设备和终端设备 |
CN110731092B (zh) | 2017-05-05 | 2023-09-01 | 诺基亚通信公司 | 实现关于相邻小区中无线电帧配置的信息的交换 |
CN109004958B (zh) * | 2017-06-06 | 2021-05-25 | 财团法人工业技术研究院 | 用户设备及其操作方法,网络装置及其操作方法 |
US11108440B2 (en) | 2017-08-03 | 2021-08-31 | Lg Electronics Inc. | Method and apparatus for transmitting or receiving reference signal in wireless communication system |
CN108183937B (zh) * | 2017-12-12 | 2020-11-10 | 济南中维世纪科技有限公司 | 一种降低带宽消耗的快速建立互联网络连接的方法 |
JP2021513766A (ja) | 2017-12-27 | 2021-05-27 | オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 情報フィードバック方法及び装置、コンピュータ記憶媒体 |
EP3735790A1 (en) * | 2018-01-05 | 2020-11-11 | Telefonaktiebolaget LM Ericsson (publ) | Methods and devices for configuration of signaling associated with multiple aoa positioning |
WO2019157230A1 (en) * | 2018-02-08 | 2019-08-15 | Cohere Technologies, Inc. | Aspects of channel estimation for orthogonal time frequency space modulation for wireless communications |
CN110167155B (zh) * | 2018-02-13 | 2021-10-29 | 中国移动通信有限公司研究院 | 上下行传输配置的确定方法、上下行传输配置方法及设备 |
KR102071395B1 (ko) * | 2018-02-14 | 2020-03-02 | 엘지전자 주식회사 | 무선 통신 시스템에서 슬롯 포맷을 결정하는 방법 및 이를 위한 장치 |
CN110266451B (zh) * | 2018-03-12 | 2021-12-24 | 上海朗帛通信技术有限公司 | 一种被用于非授权频谱的用户设备、基站中的方法和装置 |
US11057882B1 (en) | 2018-04-03 | 2021-07-06 | T-Mobile Innovations Llc | Systems and methods for dynamically setting frame configuration in a wireless network |
KR102506530B1 (ko) * | 2018-04-06 | 2023-03-06 | 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) | 이중 접속을 위한 통신 리소스 구성들 |
CN110602781A (zh) * | 2018-06-13 | 2019-12-20 | 索尼公司 | 电子设备、用户设备、无线通信方法和存储介质 |
US20200037247A1 (en) * | 2018-07-25 | 2020-01-30 | Mediatek Inc. | Wake-up signal operation for ue power saving |
US10595165B2 (en) * | 2018-07-25 | 2020-03-17 | Cisco Technology, Inc. | Device location tracking with tag antenna switching |
US11172485B2 (en) * | 2018-07-26 | 2021-11-09 | Qualcomm Incorporated | Group-common control information |
CN112513662A (zh) * | 2018-08-01 | 2021-03-16 | 苹果公司 | 对无线网络中的用户装备(ue)定位的测量和报告 |
US11503604B2 (en) * | 2018-09-04 | 2022-11-15 | Hyundai Motor Company | Method for configuring sidelink resources based on user equipment speed in communication system and apparatus for the same |
EP3837773B1 (en) * | 2018-09-28 | 2024-03-06 | Sony Group Corporation | Method and system for managing interference in multi trp systems |
US10455442B1 (en) * | 2018-10-04 | 2019-10-22 | Cypress Semiconductor Corporation | Systems, methods, and devices for implementing antenna diversity with wireless communications devices |
US10813041B2 (en) * | 2018-11-09 | 2020-10-20 | Sony Corporation | Propagating discovery assistance request and response |
CN110012483B (zh) * | 2018-12-11 | 2021-11-30 | 西北大学 | 一种联合不对称接入和无线携能通信的干扰协调方法 |
US11229045B2 (en) * | 2018-12-14 | 2022-01-18 | Qualcomm Incorporated | Pruning rules for DCI repetition |
US11228350B2 (en) * | 2019-01-21 | 2022-01-18 | Qualcomm Incorporated | Beam-based detection for interference mitigation |
BR112021015839A2 (pt) * | 2019-02-14 | 2021-10-13 | Google Llc | Retomada de conexões por rádio em uma rede de comunicação |
CN109743086A (zh) * | 2019-03-06 | 2019-05-10 | 江南大学 | 一种大规模mimo系统的信道估计方法 |
WO2020198625A1 (en) * | 2019-03-27 | 2020-10-01 | Apple Inc. | Base station, user equipment and corresponding methods for redirection from gsm edge radio access network (geran) bands to evolved umts terrestrial radio access network (eutran) bands |
US11531080B2 (en) * | 2019-07-24 | 2022-12-20 | Cypress Semiconductor Corporation | Leveraging spectral diversity for machine learning-based estimation of radio frequency signal parameters |
US11528585B2 (en) * | 2019-09-05 | 2022-12-13 | Apple Inc. | Scalable and reliable multicast protocols |
US11134503B2 (en) * | 2019-11-26 | 2021-09-28 | T-Mobile Usa, Inc. | Dynamic allocation of transmission slots based on UE information |
US11792877B2 (en) * | 2020-02-21 | 2023-10-17 | Qualcomm Incorporated | Indication triggering transmission of known data for training artificial neural networks |
WO2021175436A1 (en) * | 2020-03-06 | 2021-09-10 | Nokia Technologies Oy | Determining target positions of mobile devices |
ES2914606T3 (es) * | 2020-03-18 | 2022-06-14 | Asustek Comp Inc | Procedimiento y aparato para realizar un procedimiento para actualizar identidades de capa 2 |
CN115398502B (zh) * | 2020-04-21 | 2023-10-13 | 哲库科技(上海)有限公司 | 用于无线通信的数据平面可缩放架构 |
CN113300750A (zh) * | 2021-05-24 | 2021-08-24 | 南京邮电大学 | 基于wifi信号的人员身份认证和手写字母识别方法 |
CN115549730A (zh) * | 2021-06-29 | 2022-12-30 | 中兴通讯股份有限公司 | 最优波束的确定方法及装置 |
US11201643B1 (en) | 2021-08-04 | 2021-12-14 | King Abdulaziz University | Method, apparatus and system for transmission of data in a power domain non-orthogonal multiple access system |
US11632271B1 (en) | 2022-02-24 | 2023-04-18 | T-Mobile Usa, Inc. | Location-based channel estimation in wireless communication systems |
WO2024069530A1 (en) * | 2022-09-28 | 2024-04-04 | Lenovo (Singapore) Pte. Ltd. | Interference management |
CN117318775B (zh) * | 2023-11-30 | 2024-03-08 | 南通大学 | 一种多用户通信系统及其传输方法、设备及介质 |
Family Cites Families (224)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5853934A (ja) | 1981-09-25 | 1983-03-30 | Mitsubishi Petrochem Co Ltd | 印刷性を付与したポリプロピレン組成物 |
US5471647A (en) | 1993-04-14 | 1995-11-28 | The Leland Stanford Junior University | Method for minimizing cross-talk in adaptive transmission antennas |
JP3354063B2 (ja) | 1996-11-29 | 2002-12-09 | 株式会社新川 | リードフレーム供給方法及び供給装置 |
JP3641961B2 (ja) | 1999-02-01 | 2005-04-27 | 株式会社日立製作所 | アダプティブアレイアンテナを使用した無線通信装置 |
US6404760B1 (en) * | 1999-07-19 | 2002-06-11 | Qualcomm Incorporated | CDMA multiple access interference cancellation using signal estimation |
US20140206367A1 (en) * | 2000-06-13 | 2014-07-24 | Comcast Cable Communications, Llc | Method and apparatus for optimization of wireless multipoint electromagnetic communication networks |
GB2375015A (en) * | 2001-04-27 | 2002-10-30 | Ericsson Telefon Ab L M | Communications networks |
GB2376568B (en) | 2001-06-12 | 2005-06-01 | Mobisphere Ltd | Improvements in or relating to smart antenna arrays |
US7570656B2 (en) * | 2001-06-18 | 2009-08-04 | Yitran Communications Ltd. | Channel access method for powerline carrier based media access control protocol |
US8018903B2 (en) * | 2001-11-21 | 2011-09-13 | Texas Instruments Incorporated | Closed-loop transmit diversity scheme in frequency selective multipath channels |
US7302227B2 (en) * | 2003-02-03 | 2007-11-27 | Sony Corporation | Communication method, communication device, and computer program |
EP1637901A4 (en) | 2003-06-25 | 2007-12-26 | Fujitsu Ltd | METHOD AND DEVICE FOR ESTIMATING THE WAVE ANCHOR |
US8170081B2 (en) * | 2004-04-02 | 2012-05-01 | Rearden, LLC. | System and method for adjusting DIDO interference cancellation based on signal strength measurements |
US8654815B1 (en) * | 2004-04-02 | 2014-02-18 | Rearden, Llc | System and method for distributed antenna wireless communications |
US7454173B2 (en) | 2004-04-23 | 2008-11-18 | Telefonaktiebolaget L M Ericsson (Publ) | Load control in shared medium many-to-one communication systems |
US20050286663A1 (en) | 2004-06-23 | 2005-12-29 | Intel Corporation | Compact feedback for closed loop MIMO systems |
US7394798B2 (en) * | 2004-06-30 | 2008-07-01 | Spyder Navigations, L.L.C. | Push-to talk over Ad-Hoc networks |
KR100641233B1 (ko) * | 2004-07-28 | 2006-11-02 | 엘지전자 주식회사 | 피티티 서비스의 발언권 처리방법 |
US9485787B2 (en) * | 2005-05-24 | 2016-11-01 | Kodiak Networks, Inc. | Method to achieve a fully acknowledged mode communication (FAMC) in push-to-talk-over-cellular (PoC) |
ATE378789T1 (de) * | 2004-12-15 | 2007-11-15 | Matsushita Electric Ind Co Ltd | Unterstützung für garantierten bitratenverkehr für uplink übertragungen |
CN100399721C (zh) | 2005-01-11 | 2008-07-02 | 中国人民解放军理工大学 | 基于发送辅助选择用户反馈的正交预波束成形传输方法 |
CN101384215B (zh) | 2005-03-11 | 2011-02-16 | 通用医疗公司 | 利用最大相干投影的高解析度弥散数据可视化 |
US7813695B2 (en) * | 2005-05-06 | 2010-10-12 | Telefonaktiebolaget L M Ericsson (Publ) | Mobile assisted relay selection in a telecommunications system |
US8306203B1 (en) * | 2005-06-10 | 2012-11-06 | Nextel Communications, Inc. | Method and computer-readable medium for terminating options for dispatch group calls |
US7817967B2 (en) * | 2005-06-21 | 2010-10-19 | Atc Technologies, Llc | Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction |
US8213978B1 (en) * | 2005-08-29 | 2012-07-03 | At&T Mobility Ii Llc | Estimating mobile local propagation environment characteristics for wireless communications |
US7426198B2 (en) | 2006-02-06 | 2008-09-16 | Motorola, Inc. | Method and apparatus for performing spatial-division multiple access |
US20070211813A1 (en) | 2006-03-10 | 2007-09-13 | Shilpa Talwar | MIMO precoding in the presence of co-channel interference |
US7817609B2 (en) * | 2006-03-27 | 2010-10-19 | Ka Lun Eddie Law | Multi-channel wireless networks |
EP1843484A1 (en) * | 2006-04-03 | 2007-10-10 | Nokia Siemens Networks Gmbh & Co. Kg | Method for data transmission in a radio communication system as well as radio station and radio communications system |
US7907970B2 (en) | 2006-04-14 | 2011-03-15 | Qualcomm Incorporated | Providing quality of service for various traffic flows in a communications environment |
CA2654274A1 (en) * | 2006-07-04 | 2008-01-10 | Telefonaktiebolaget L M Ericsson (Publ) | Broadcast amd multicast on high speed downlink channels |
CN101155413A (zh) | 2006-09-27 | 2008-04-02 | 华为技术有限公司 | 一种无线资源控制状态转换的方法及用户设备及网络设备 |
KR20140094660A (ko) | 2006-10-30 | 2014-07-30 | 인터디지탈 테크날러지 코포레이션 | Lte 시스템에서 추적 영역 업데이트 및 셀 재선택을 구현하는 방법 및 장치 |
KR20080074004A (ko) * | 2007-02-07 | 2008-08-12 | 엘지전자 주식회사 | 피드백 정보를 이용한 상향링크의 가상 다중 안테나 전송방법 및 이를 지원하는 이동 단말 |
US7764971B2 (en) | 2007-03-08 | 2010-07-27 | Alcatel-Lucent Usa Inc. | Control procedure for simultaneous media communications within a talk group in communication networks for public safety |
US20080260918A1 (en) | 2007-04-23 | 2008-10-23 | Wei-Hsiang Lai | Manufacturing method of three-dimensional food by rapid prototyping |
US8072930B2 (en) | 2007-04-25 | 2011-12-06 | Sony Corporation | Communication unit, system and method for saving power therein |
US8218468B2 (en) * | 2007-09-12 | 2012-07-10 | Broadcom Corporation | Method and system for multicast retry in a communication network |
US8259599B2 (en) | 2008-02-13 | 2012-09-04 | Qualcomm Incorporated | Systems and methods for distributed beamforming based on carrier-to-caused interference |
KR100925450B1 (ko) | 2008-03-03 | 2009-11-06 | 엘지전자 주식회사 | 상향링크 신호의 충돌 해결 방법 |
KR100905385B1 (ko) | 2008-03-16 | 2009-06-30 | 엘지전자 주식회사 | 무선통신 시스템에서 제어신호의 효율적인 전송방법 |
US9100068B2 (en) | 2008-03-17 | 2015-08-04 | Qualcomm, Incorporated | Multi-resolution beamforming in MIMO systems |
KR20100139062A (ko) | 2008-03-24 | 2010-12-31 | 지티이 (유에스에이) 인크. | Lte/τdd 시스템에서의 다운링크/업링크 할당 비율의 동적 조정 및 시그널링 |
US8965338B2 (en) | 2008-06-09 | 2015-02-24 | Apple Inc | Network access control methods and apparatus |
US8462686B2 (en) * | 2008-06-23 | 2013-06-11 | Thomson Licensing | Apparatus for collision mitigation of multicast transmissions in wireless networks |
KR100912226B1 (ko) | 2008-06-27 | 2009-08-14 | 삼성전자주식회사 | 다중 입출력 시스템을 위한 코드북 설계 방법 및 상기 코드북의 사용 방법 |
US8194762B2 (en) | 2008-08-19 | 2012-06-05 | Motorola Mobility, Inc. | Feedforward of non-quantized precoding weights in a wireless communications system |
US9112562B2 (en) | 2008-09-02 | 2015-08-18 | Intel Corporation | Techniques utilizing adaptive codebooks for beamforming in wireless networks |
US20100054237A1 (en) | 2008-09-04 | 2010-03-04 | Motorola, Inc. | Synchronization for femto-cell base stations |
ATE511737T1 (de) | 2008-09-19 | 2011-06-15 | Alcatel Lucent | Verfahren zur satzbildung von mobilen stationen in mimo-systemen, entsprechende mobilstation, basisstation, betrieb und wartungszentrum und funkkommunikationsnetzwerk |
CN101686544A (zh) * | 2008-09-22 | 2010-03-31 | 中兴通讯股份有限公司 | 专用随机接入资源的分配方法和基站 |
KR101621096B1 (ko) * | 2008-10-15 | 2016-05-16 | 엘지전자 주식회사 | 멀티캐스트 프레임 전송방법 및 중복 프레임 검출 방법 |
WO2010043752A1 (en) | 2008-10-16 | 2010-04-22 | Elektrobit Wireless Communications Oy | Beam forming method, apparatus and system |
CN101394215B (zh) | 2008-11-06 | 2012-10-10 | 上海交通大学 | 总反馈量受限的mimo-ofdma波束成形传输方法 |
US9320067B2 (en) | 2008-11-24 | 2016-04-19 | Qualcomm Incorporated | Configuration of user equipment for peer-to-peer communication |
CN101742609A (zh) * | 2008-11-26 | 2010-06-16 | 三星电子株式会社 | 单小区环境下基于aoa和终端移动轨迹的定位方法 |
CN101771442B (zh) | 2008-12-30 | 2012-11-21 | 华为技术有限公司 | 选择预编码向量的方法、系统、装置和移动终端 |
US8369257B2 (en) * | 2008-12-31 | 2013-02-05 | Stmicroelectronics, Inc. | Reliable and deterministic communication protocol |
EP2214444A1 (en) | 2009-01-30 | 2010-08-04 | Nec Corporation | Method for optimizing the reduction of mobility signalling at inter-rat change |
CN101800581A (zh) | 2009-02-09 | 2010-08-11 | 中兴通讯股份有限公司 | 基于频分双工系统的多用户波束赋形方法与装置 |
CN101800582A (zh) | 2009-02-09 | 2010-08-11 | 中兴通讯股份有限公司 | 一种多用户波束成形方法及装置 |
US20130153298A1 (en) | 2009-02-19 | 2013-06-20 | Interdigital Patent Holdings, Inc. | Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers |
US8995923B2 (en) | 2009-03-03 | 2015-03-31 | Mobilitie, Llc | System and method for management of a dynamic network using wireless communication devices |
US8547969B2 (en) | 2009-03-31 | 2013-10-01 | Interdigital Patent Holdings, Inc. | Method and apparatus for providing non-packet switched service in a target radio access technology network |
US8160976B2 (en) | 2009-04-17 | 2012-04-17 | Research In Motion Limited | Systems and methods for achieving PLMN continuity when moving between networks of different types through network selection |
US8243610B2 (en) | 2009-04-21 | 2012-08-14 | Futurewei Technologies, Inc. | System and method for precoding codebook adaptation with low feedback overhead |
US20110103305A1 (en) | 2009-04-21 | 2011-05-05 | Syed Hussain Ali | Methods and apparatus to suspend packet switched services |
US9046591B1 (en) * | 2009-05-07 | 2015-06-02 | Sigtem Technology, Inc. | Coordinate-free measurement-domain navigation and guidance using location-dependent radio signal measurements |
WO2010140826A2 (en) | 2009-06-03 | 2010-12-09 | Samsung Electronics Co., Ltd. | Selective application of frequency hopping for transmission of control signals |
ES2694393T3 (es) | 2009-06-16 | 2018-12-20 | Blackberry Limited | Método para acceder a un servicio no disponible a través de una celda de red |
EP2271153A1 (en) | 2009-06-25 | 2011-01-05 | NEC Corporation | A method for managing a CS IRAT handover from a 2g/3g network to a LTE network |
CA2771594C (en) * | 2009-08-20 | 2018-05-01 | Karus Therapeutics Limited | Tricyclic heterocyclic compounds as phosphoinositide 3-kinase inhibitors |
KR101712785B1 (ko) | 2009-08-21 | 2017-03-06 | 인터디지탈 패튼 홀딩스, 인크 | 상이한 무선 액세스 기술들에 대해 다운링크 업링크를 분리하기 위한 멀티 무선 액세스 기술 계층에 대한 방법 및 장치 |
GB0915152D0 (en) | 2009-09-01 | 2009-10-07 | Vodafone Plc | LTE voice call handling |
KR101319903B1 (ko) * | 2009-09-21 | 2013-10-18 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치 |
US8781005B2 (en) | 2009-10-01 | 2014-07-15 | Qualcomm Incorporated | Scalable quantization of channel state information for MIMO transmission |
EP2306764A1 (en) | 2009-10-02 | 2011-04-06 | Thomson Telecom Belgium | A method for configuring a plurality of parameters in a device |
US20110105135A1 (en) * | 2009-11-03 | 2011-05-05 | Motorola-Mobility, Inc. | Interference coordination in heterogeneous networks using wireless terminals as relays |
US20110143759A1 (en) | 2009-12-15 | 2011-06-16 | Yong Seouk Choi | Method of performing handover in wireless communication system |
US8594074B2 (en) | 2009-12-17 | 2013-11-26 | Telefonaktiebolaget L M Ericsson (Publ) | Call setup for access division multiplexing |
US9319251B2 (en) | 2010-01-04 | 2016-04-19 | Samsung Electronics Co., Ltd. | Multiple-input multiple-output (MIMO) communication system using a codebook and method of designing the codebook |
EP2526731A4 (en) * | 2010-01-19 | 2016-06-01 | Nokia Technologies Oy | ADVANCED N UD B-CENTRALIZED RESOURCE UTILIZATION FOR DEVICE AND CELLULAR DEVICE COMMUNICATION USERS |
JP5258002B2 (ja) | 2010-02-10 | 2013-08-07 | マーベル ワールド トレード リミテッド | Mimo通信システムにおける装置、移動通信端末、チップセット、およびその方法 |
CN102158964B (zh) | 2010-02-12 | 2014-03-12 | 华为技术有限公司 | 一种通信系统中的资源协调方法与装置 |
US8305987B2 (en) | 2010-02-12 | 2012-11-06 | Research In Motion Limited | Reference signal for a coordinated multi-point network implementation |
KR101276855B1 (ko) | 2010-03-08 | 2013-06-18 | 엘지전자 주식회사 | 프리코딩 행렬 정보 전송방법 및 사용자기기와, 프리코딩 행렬 구성방법 및 기지국 |
CN101815325B (zh) | 2010-03-09 | 2012-05-23 | 上海华为技术有限公司 | 跳频的实现方法、装置和通信系统 |
CN101807978B (zh) | 2010-03-12 | 2012-11-21 | 北京航空航天大学 | 基于收发机天线校准误差的多点协作鲁棒预编码方法 |
US8478269B2 (en) | 2010-03-24 | 2013-07-02 | Qualcomm Incorporated | Method and apparatus to enable a UE to return to a wireless network after failure to obtain service |
CN101835159A (zh) * | 2010-03-29 | 2010-09-15 | 普天信息技术研究院有限公司 | 一种跳频用户和非跳频用户的频域复用方法和系统 |
US9402254B2 (en) | 2010-03-30 | 2016-07-26 | Nokia Technologies Oy | Method and apparatus for device discovery through beaconing |
JP5072999B2 (ja) | 2010-04-05 | 2012-11-14 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信制御装置及び無線通信制御方法 |
WO2011126447A1 (en) | 2010-04-07 | 2011-10-13 | Telefonaktiebolaget L M Ericsson (Publ) | A precoder structure for mimo precoding |
US9485069B2 (en) * | 2010-04-15 | 2016-11-01 | Qualcomm Incorporated | Transmission and reception of proximity detection signal for peer discovery |
EP2384078A1 (en) * | 2010-04-30 | 2011-11-02 | Alcatel Lucent | Network control |
US8792370B2 (en) * | 2010-05-05 | 2014-07-29 | Qualcomm Incorporated | Carrier preconfiguration for PDCCH monitoring in multi-carrier systems |
US8504052B2 (en) | 2010-05-06 | 2013-08-06 | Nokia Corporation | Measurements and fast power adjustments in D2D communications |
CN103004160B (zh) | 2010-06-01 | 2016-08-03 | 诺基亚技术有限公司 | 在通信系统中选择波束组和波束子集的装置、方法和计算机程序产品 |
WO2011150549A1 (en) | 2010-06-01 | 2011-12-08 | Nokia Corporation | Apparatus and method for selection of beam groups and subset of beams in communication system |
JP2011259263A (ja) | 2010-06-10 | 2011-12-22 | Hitachi Kokusai Electric Inc | 通信装置 |
CN102083047B (zh) | 2010-06-18 | 2014-12-10 | 电信科学技术研究院 | 一种激活/去激活isr优化方法及网络侧设备 |
US8908636B2 (en) | 2010-06-21 | 2014-12-09 | Qualcomm Incorporated | Method and apparatus for QoS context transfer during inter radio access technology handover in a wireless communication system |
CN103026775B (zh) | 2010-06-28 | 2016-11-09 | 瑞典爱立信有限公司 | 通过使用srvcc功能来支持ps话音呼叫到cs话音呼叫的切换的方法和设备 |
KR20120002875A (ko) | 2010-07-01 | 2012-01-09 | 주식회사 팬택 | 채널정보 송수신방법 및 그 단말, 그 기지국 |
US20120012078A1 (en) * | 2010-07-14 | 2012-01-19 | John Carl Lohr | Intake manifold for internal combustion engine |
US8219138B2 (en) | 2010-07-19 | 2012-07-10 | King Fahd University Of Petroleum And Minerals | Optimal power allocation method for an LSSTC wireless transmission system |
US8562324B2 (en) | 2010-08-18 | 2013-10-22 | Makerbot Industries, Llc | Networked three-dimensional printing |
CN101944981A (zh) | 2010-09-03 | 2011-01-12 | 北京大学 | 一种获取通信系统中长期信道状态信息的方法 |
CA2816153C (en) | 2010-09-28 | 2017-08-08 | Research In Motion Limited | Residential/enterprise network connection management and csfb scenarios |
EP2622933B1 (en) | 2010-10-01 | 2014-08-27 | Nokia Solutions and Networks Oy | Radio resource control connection release message wait timer |
US8873480B2 (en) | 2010-10-01 | 2014-10-28 | Intel Corporation | Techniques for dynamic spectrum management, allocation, and sharing |
JP5639281B2 (ja) | 2010-11-11 | 2014-12-10 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 回線交換フォールバック性能を改善するためのシステムおよび方法 |
SG190795A1 (en) * | 2010-11-15 | 2013-07-31 | Nokia Siemens Networks Oy | Sub-frame configuration |
JP5703709B2 (ja) | 2010-11-19 | 2015-04-22 | 富士通株式会社 | 無線通信システム、送信機、無線通信方法及び送信機の制御方法 |
JP2012124860A (ja) | 2010-12-10 | 2012-06-28 | Sharp Corp | 通信システムおよび通信方法 |
US8731579B2 (en) * | 2011-01-13 | 2014-05-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Enhanced angle-of-arrival positioning |
CA2826085C (en) * | 2011-02-01 | 2017-03-07 | Research In Motion Limited | Downlink multi-user interference alignment scheme |
GB201102609D0 (en) * | 2011-02-15 | 2011-03-30 | Tristel Plc | Pump for sterilisation apparatus |
CN103430467B (zh) * | 2011-03-11 | 2016-05-11 | Lg电子株式会社 | 终端在应用了载波聚合技术的无线通信系统中发送/接收信号的方法和装置 |
WO2012125931A1 (en) | 2011-03-16 | 2012-09-20 | Interdigital Patent Holdings, Inc. | Methods for providing precoding and feedback and base station |
US9072106B2 (en) | 2011-03-24 | 2015-06-30 | Blackberry Limited | Device-empowered radio resource selection |
EP3364707B1 (en) * | 2011-04-01 | 2020-04-01 | Intel Corporation | Apparatus and method for flexible adjustment of uplink and downlink ratio configuration |
WO2011116722A2 (zh) | 2011-04-29 | 2011-09-29 | 华为技术有限公司 | Isr激活场景中移动管理设备故障的处理方法及设备 |
US9998944B2 (en) | 2011-04-29 | 2018-06-12 | Intel Corporation | System and method of channel control in a wireless communication system |
WO2012148210A2 (en) | 2011-04-29 | 2012-11-01 | Lg Electronics Inc. | Method for processing data associated with session management and mobility management |
US8675762B2 (en) | 2011-05-02 | 2014-03-18 | Alcatel Lucent | Method of transforming pre-coded signals for multiple-in-multiple-out wireless communication |
US8873489B2 (en) * | 2011-05-05 | 2014-10-28 | Mediatek Inc. | Signaling methods for UE-specific dynamic downlink scheduler in OFDMA systems |
CN102781110B (zh) * | 2011-05-12 | 2015-04-01 | 中兴通讯股份有限公司 | 具有跳频功能的资源位置分配方法及装置 |
US20120322489A1 (en) | 2011-06-15 | 2012-12-20 | Jennifer Liu | Apparatus and method for idle-state signaling reduction control in wireless networks |
US9137804B2 (en) * | 2011-06-21 | 2015-09-15 | Mediatek Inc. | Systems and methods for different TDD configurations in carrier aggregation |
CN102255718B (zh) * | 2011-07-11 | 2013-09-11 | 电信科学技术研究院 | 一种载波聚合系统中的数据传输方法及装置 |
GB2492799B (en) | 2011-07-12 | 2014-06-25 | Samsung Electronics Co Ltd | Improved signalling in a wireless network |
US9237434B2 (en) * | 2011-07-13 | 2016-01-12 | Qualcomm Incorporated | Network-assisted peer discovery with network coding |
CN102883440B (zh) | 2011-07-15 | 2015-11-25 | 华为技术有限公司 | 一种无线宽带通信方法,装置和系统 |
KR20140041514A (ko) | 2011-07-21 | 2014-04-04 | 엘지전자 주식회사 | 무선 기기들 사이의 통신 방법 및 이를 이용하는 무선 기기 |
US20130021925A1 (en) | 2011-07-22 | 2013-01-24 | Sharp Laboratories Of America, Inc. | Coordinated multipoint (comp) transmission method selection and feedback requirements |
EP2549814B1 (en) | 2011-07-22 | 2016-12-28 | Alcatel Lucent | A method and a base station for beam coordination |
US9253766B2 (en) * | 2011-07-22 | 2016-02-02 | Lg Electronics Inc. | Method for setting subframe in wireless communication system |
WO2013019816A2 (en) | 2011-08-01 | 2013-02-07 | Intel Corporation | Opportunistic device-to-device communication |
WO2013019261A1 (en) * | 2011-08-01 | 2013-02-07 | Intel Corporation | MULTI-HOP SINGLE SIGN-ON (SSO) FOR IDENTITY PROVIDER (IdP) ROAMING/PROXY |
EP2742705B1 (en) | 2011-08-12 | 2018-10-10 | LG Electronics Inc. | Method for processing data associated with idle mode signaling reduction in a wireless communication system |
US8923274B2 (en) * | 2011-08-15 | 2014-12-30 | Blackberry Limited | Notifying a UL/DL configuration in LTE TDD systems |
KR101828836B1 (ko) | 2011-08-23 | 2018-02-13 | 삼성전자주식회사 | 빔 포밍 기반의 무선통신시스템에서 빔 스캐닝을 통한 스케줄링 장치 및 방법 |
US9485693B2 (en) | 2011-08-25 | 2016-11-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Adapting a triggering threshold for cell re-selection measurements |
KR20140058644A (ko) * | 2011-08-25 | 2014-05-14 | 엘지전자 주식회사 | 단말 간 직접 통신을 수행하는 방법과 이를 지원하는 방법 및 이를 위한 장치 |
US9253233B2 (en) * | 2011-08-31 | 2016-02-02 | Qualcomm Incorporated | Switch signaling methods providing improved switching between representations for adaptive HTTP streaming |
US9246558B2 (en) * | 2011-09-26 | 2016-01-26 | Samsung Electronics Co., Ltd. | CoMP measurement system and method |
CN104025475B (zh) | 2011-10-03 | 2018-04-13 | 英特尔公司 | 装置到装置(d2d)通信机制 |
US9025479B2 (en) * | 2011-10-03 | 2015-05-05 | Qualcomm Incorporated | Increasing CSI-RS overhead via antenna port augmentation |
TW201330569A (zh) | 2011-10-07 | 2013-07-16 | Interdigital Patent Holdings | 整合使用載波聚集不同無線電存取技術方法及裝置 |
KR20130040749A (ko) | 2011-10-14 | 2013-04-24 | 한국전자통신연구원 | 디바이스 간 직접 링크를 이용한 피어 디스커버리 방법 |
CN104012013B (zh) * | 2011-10-24 | 2018-01-23 | Lg电子株式会社 | 一种在无线通信系统中发送信号的d2d(设备对设备)设备以及发送信号方法 |
CN104641682B (zh) | 2011-10-28 | 2019-01-15 | 黑莓有限公司 | 在电路交换回退操作期间处理承载的方法和装置 |
CN107104707B (zh) * | 2011-10-31 | 2021-01-08 | 三星电子株式会社 | 通信系统中的反馈方法和设备 |
US20130114576A1 (en) | 2011-11-03 | 2013-05-09 | Pantech Co., Ltd. | Apparatus and method for performing uplink synchronization in multiple component carrier system |
EP2590336A1 (en) | 2011-11-07 | 2013-05-08 | Panasonic Corporation | Precoding matrix set quality measurement and reporting |
US9094977B2 (en) | 2011-11-11 | 2015-07-28 | Samsung Electronics Co., Ltd. | Apparatus and method for supporting mobility management in communication systems with large number of antennas |
TW201322743A (zh) * | 2011-11-18 | 2013-06-01 | Onlive Inc | 用於控制視訊串流之圖形使用者介面,系統及方法 |
KR101962142B1 (ko) * | 2011-11-29 | 2019-03-26 | 엘지전자 주식회사 | 무선통신 시스템에서 d2d 통신을 수행하거나 d2d 통신을 지원하는 방법과 이를 위한 장치 |
KR20130059694A (ko) | 2011-11-29 | 2013-06-07 | 주식회사 팬택 | 다중 요소 반송파 시스템에서 셀 선택적 신호 송수신 장치 및 방법 |
CN107197422B (zh) * | 2011-12-05 | 2020-10-02 | Lg 电子株式会社 | 在无线通信系统中检测用于ue之间直接通信的信号的方法及其设备 |
CN103975539A (zh) * | 2011-12-06 | 2014-08-06 | 爱立信(中国)通信有限公司 | 多普勒频移补偿装置和方法 |
CN102523627B (zh) * | 2011-12-08 | 2014-04-02 | 电信科学技术研究院 | 一种数据传输方法及装置 |
KR20130065373A (ko) * | 2011-12-09 | 2013-06-19 | 한국전자통신연구원 | D2d 그룹 통신 방법 및 이를 이용하는 단말 장치 |
KR101615988B1 (ko) | 2011-12-16 | 2016-05-11 | 엘지전자 주식회사 | 무선 접속 시스템에서 채널 상태 정보 측정 방법 및 이를 위한 장치 |
GB2497589A (en) | 2011-12-16 | 2013-06-19 | Renesas Mobile Corp | Resource Allocation in a Wireless Communication System |
GB2497752B (en) | 2011-12-19 | 2014-08-06 | Broadcom Corp | Apparatus and methods for supporting device-to-device discovery in cellular communications |
KR101921669B1 (ko) | 2011-12-27 | 2018-11-27 | 삼성전자주식회사 | FDD 모드로 동작하는 Massive MIMO를 사용하는 무선통신 시스템에서 제한된 정보량을 이용하여 채널 상태 정보를 피드백 하기 위한 장치 및 방법 |
US8462688B1 (en) | 2012-01-25 | 2013-06-11 | Ofinno Technologies, Llc | Base station and wireless device radio resource control configuration |
US9049708B2 (en) | 2012-02-03 | 2015-06-02 | Interdigital Patent Holdings, Inc. | Method and apparatus for coexistence among wireless transmit/receive units (WTRUs) operating in the same spectrum |
US8982725B2 (en) | 2012-02-03 | 2015-03-17 | Mediatek Inc. | Method and apparatus for collecting and providing diverse traffic information in cellular networks |
CN102547871B (zh) * | 2012-02-07 | 2015-07-29 | 华为技术有限公司 | 一种d2d通信中的资源协商方法及设备 |
CN102571313B (zh) * | 2012-02-13 | 2014-07-30 | 普天信息技术研究院有限公司 | 一种不同上下行配比载波聚合中交叉载波调度方法 |
CN104137608A (zh) | 2012-02-29 | 2014-11-05 | 瑞典爱立信有限公司 | 用于为共享网络节点增强电路交换呼叫回退(csfb)服务的方法和设备 |
US8885749B2 (en) | 2012-03-02 | 2014-11-11 | Telefonaktiebolaget L M Ericsson (Publ) | Radio base station and method therein for transforming a data transmission signal |
CN103430600B (zh) | 2012-03-13 | 2016-12-28 | Lg电子株式会社 | 控制无线通信系统中用户设备的发送功率的方法 |
US20130244649A1 (en) | 2012-03-19 | 2013-09-19 | Htc Corporation | Method of Transferring Short Message Service |
WO2013149372A1 (en) | 2012-04-01 | 2013-10-10 | Qualcomm Incorporated | Connected mode mobility between radio access networks |
GB2501088B (en) | 2012-04-11 | 2014-11-12 | Broadcom Corp | Methods and apparatus for transmitting and/or controlling device-to-device discovery signals |
US9002281B2 (en) | 2012-04-30 | 2015-04-07 | Intel Corporation | Apparatus and method to enable device-to-device (D2D) communication in cellular networks |
US8565793B1 (en) | 2012-05-15 | 2013-10-22 | Cisco Technology, Inc. | System and method for scoped paging in multi-radio heterogeneous networks |
TWI620459B (zh) | 2012-05-31 | 2018-04-01 | 內數位專利控股公司 | 在蜂巢式通訊系統中賦能直鏈通訊排程及控制方法 |
WO2013191522A1 (ko) * | 2012-06-22 | 2013-12-27 | 엘지전자 주식회사 | 기기-대-기기 통신을 위한 스케줄링 방법 및 이를 위한 장치 |
KR20150035590A (ko) | 2012-06-28 | 2015-04-06 | 엘지전자 주식회사 | 무선 통신 시스템에서 장치 대 장치 통신 방법 및 장치 |
US9154267B2 (en) | 2012-07-02 | 2015-10-06 | Intel Corporation | Sounding reference signal (SRS) mechanism for intracell device-to-device (D2D) communication |
US9420613B2 (en) | 2012-07-06 | 2016-08-16 | Qualcomm Incorporated | Configurable host interface using multi-radio device and architecture for WLAN offload |
WO2014010956A1 (ko) * | 2012-07-13 | 2014-01-16 | 한국전자통신연구원 | 단말 간 직접 통신을 위한 디스커버리 방법 |
US9697218B2 (en) * | 2012-07-19 | 2017-07-04 | Appsense Limited | Systems and methods for providing metadata enhanced filenames |
US9473760B2 (en) | 2012-08-08 | 2016-10-18 | Makerbot Industries, Llc | Displays for three-dimensional printers |
TWI621371B (zh) * | 2012-08-23 | 2018-04-11 | 內數位專利控股公司 | 執行裝置對裝置發現方法及裝置 |
CN102857901A (zh) * | 2012-09-12 | 2013-01-02 | 中兴通讯股份有限公司 | 终端的发现、发现处理方法及装置 |
US9838998B2 (en) | 2012-10-10 | 2017-12-05 | Lg Electronics Inc. | Method of processing downlink data notification message and server therefore |
WO2014056154A1 (en) | 2012-10-10 | 2014-04-17 | Telefonaktiebolaget L M Ericsson (Publ) | Discontinuous reception method and user equipment using the same |
GB2506913B (en) | 2012-10-12 | 2015-06-17 | Broadcom Corp | Apparatus and method for use in a communication network |
US10356753B2 (en) * | 2012-10-19 | 2019-07-16 | Qualcomm Incorporated | Suppressing wireless broadcast/multicast data transmissions |
US9131368B2 (en) | 2012-11-02 | 2015-09-08 | General Dynamics C4 Systems, Inc. | Method and apparatus for communicating in an increased coverage area to a wireless communication unit |
US9037578B2 (en) | 2012-12-03 | 2015-05-19 | Wellclub, Llc | Content suggestion engine |
US9271324B2 (en) | 2012-12-19 | 2016-02-23 | Blackberry Limited | Method and apparatus for assisted serving cell configuration in a heterogeneous network architecture |
US20140171062A1 (en) * | 2012-12-19 | 2014-06-19 | Telefonaktiebolaget L M Ericsson (Publ) | Wireless Devices, Network Node and Methods for Handling Relay Assistance in a Wireless Communications Network |
US8971437B2 (en) * | 2012-12-20 | 2015-03-03 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
US8976884B2 (en) | 2012-12-20 | 2015-03-10 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
US8942302B2 (en) | 2012-12-20 | 2015-01-27 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
US9609637B2 (en) * | 2012-12-21 | 2017-03-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Override of multi-TTI scheduling messages |
US9143291B2 (en) | 2012-12-27 | 2015-09-22 | Google Technology Holdings LLC | Method and apparatus for device-to-device communication |
CN103250452B (zh) * | 2012-12-31 | 2016-10-12 | 华为技术有限公司 | 邻近身份指示码的发送方法、用户设备及基站 |
US9036580B2 (en) * | 2013-01-17 | 2015-05-19 | Sharp Laboratories Of America, Inc. | Systems and methods for dynamically configuring a flexible subframe |
KR102087039B1 (ko) | 2013-01-18 | 2020-03-10 | 삼성전자 주식회사 | 이차원 평면 배열 안테나를 사용하는 무선 통신 시스템에서 채널 상태 정보 기준 신호 전송 및 하이브리드 공간분할 다중화와 공간분할 다중 접속 방법 및 장치 |
CN103037524B (zh) * | 2013-01-18 | 2015-04-08 | 东莞宇龙通信科技有限公司 | Tdd上下行子帧比例的双周期动态配置方法、基站、系统和通信设备 |
WO2014126319A1 (en) | 2013-02-14 | 2014-08-21 | Lg Electronics Inc. | Method and apparatus for providing antenna configuration information for massive multiple input multiple output in a wireless communication system |
US9451629B2 (en) * | 2013-02-26 | 2016-09-20 | Qualcomm Incorporated | Resource allocation for the coexistence of peer discovery and legacy LTE traffic |
WO2014135210A1 (en) | 2013-03-07 | 2014-09-12 | Nokia Solutions And Networks Oy | Handover of mobility management entity for load balancing |
KR102019716B1 (ko) | 2013-03-08 | 2019-09-09 | 삼성전자 주식회사 | 무선통신 시스템에서 장치 간 직접통신 방법 및 장치 |
WO2014168734A1 (en) * | 2013-03-15 | 2014-10-16 | Cedars-Sinai Medical Center | Time-resolved laser-induced fluorescence spectroscopy systems and uses thereof |
US9418503B2 (en) | 2013-03-15 | 2016-08-16 | Virginia Tech Intellectual Properties, Inc. | 3D printing vending machine |
CN105210439A (zh) * | 2013-03-26 | 2015-12-30 | 诺基亚通信公司 | 根据所分配的发现模式的节点发现 |
WO2014158255A1 (en) | 2013-03-29 | 2014-10-02 | Intel IP Corporation | Enodeb reference signal reduction |
US9479230B2 (en) | 2013-05-31 | 2016-10-25 | Blackberry Limited | Systems and methods for data offload in wireless networks |
US20140370904A1 (en) | 2013-06-12 | 2014-12-18 | Research In Motion Limited | Device-to-device discovery |
US9814037B2 (en) | 2013-06-28 | 2017-11-07 | Intel Corporation | Method for efficient channel estimation and beamforming in FDD system by exploiting uplink-downlink correspondence |
US9794870B2 (en) | 2013-06-28 | 2017-10-17 | Intel Corporation | User equipment and method for user equipment feedback of flow-to-rat mapping preferences |
US20160278069A1 (en) | 2013-11-29 | 2016-09-22 | Samsung Electronics Co., Ltd | Method and apparatus for application recognition qos-differentiated device-to-device communication in wireless communication system |
US20150349924A1 (en) * | 2014-05-28 | 2015-12-03 | Qualcomm Incorporated | Link budget improvement in peer discovery |
JP2017021656A (ja) * | 2015-07-13 | 2017-01-26 | キヤノン株式会社 | 表示装置及びその制御方法 |
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