CN104811221A - 用于ifdma、lfdma及ofdma系统的跳频设计 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7143—Arrangements for generation of hop patterns
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/692—Hybrid techniques using combinations of two or more spread spectrum techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
Abstract
本申请涉及用于IFDMA、LFDMA及OFDMA系统的跳频设计。本发明阐述通过随时间动态地更改用户偏移以获得干扰分集来促进单载波FDMA无线环境中跳频的系统及方法。可使用具有所指派值的节点的信道树。可将用户装置指派给这些节点,可评估所述信道树中指派节点与根节点之间的路径,且可实施表格查找以确定为指派给既定节点的用户装置指派的副载波组的身份以及将要指派给所述用户装置的副载波的数量。另外,可在通信事件期间动态地改变节点值以更改路径值且因此更改副载波组的指派。
Description
本申请为发明名称为“用于IFDMA、LFDMA及OFDMA系统的跳频设计”的原中国发明专利申请的分案申请。原申请的中国申请号为200680021161.2;原申请的申请日为2006年4月19号,其国际申请号为PCT/US2006/014879。
相关申请案交叉参考
本发明申请案根据35U.S.C.§119(e)主张于2005年4月19日提出申请的标题为“Frequency Hopping In Interleaved Frequency Division Multiple Access CommunicationSystems”的序列号为60/672,575的美国临时专利申请案及于2005年6月15日提出申请的序列号为60/691,755的临时专利申请案的利益,所述申请案的全部以引用方式并入本文中。
参照共同待决的专利申请案
本专利申请案涉及以下于2005年6月30日提出申请的共同待决的序列号为11/173,873的美国专利申请案,所述申请案受让给本受让人且明确地以引用方式并入本文中。
技术领域
大体来说,以下说明涉及无线通信,且更确切来说,涉及通过在单载波FDMA网络环境中使用跳频来减轻附近通信扇区中各用户装置间的干扰。
背景技术
无线通信系统网络已变成一种大多数人借以在全世界范围内进行通信的流行装置。为满足消费者的需要并提高便携性及方便性,无线通信装置已变得更小且功能更强大。诸如蜂窝式电话等移动装置的处理能力的增加已导致对无线网络传输系统的需求也在增加。而这类系统却通常不像通过其进行通信的蜂窝式装置一样易于更新。随着移动装置能力的扩展,可能难以以一种促进充分利用新的及改进的无线装置能力的方式来维持旧的无线网络系统。
更确切来说,基于频分的技术通常通过将频谱分成若干个均匀带宽块而将所述频谱分成不同的信道,例如,可将指配用于无线通信的频带的划分分成30个信道,其每一者可携载语音会话或通过数字服务来携载数字数据。每次只能将一个用户指配给每一信道。一种已知的变型是正交频分技术,其将整个系统带宽有效地分割成多个正交子频带。所述子频带还称为音调、载波、副载波、频段及频率信道。每一子频带都与可使用数据进行调制的副载波相关联。对于基于时分的技术,将频带按时间顺序分成顺序性的时间片或者时隙。为信道的每一用户提供用于循环方式传输及接收信息的时间片。例如,在任一既定时间t处,可为用户提供对信道的短猝发存取。然后,存取会切换到另一个被提供用于传输及接收信息的短猝发时间的用户。所述“轮流”循环会继续进行下去,且最终每一用户都被提供多个传输及接收猝发。
典型的无线通信网络(例如,使用频分、时分及码分技术)包括一个或多个提供覆盖区域的基站及一个或多个可在所述覆盖区域内传输及接收数据的移动(例如,无线)终端机。典型的基站可同时传输广播、多播及/或单播服务的多个数据流,其中数据流是可独立接收的移动终端机感兴趣的数据流。基站覆盖区域内的移动终端机可能对接收由复合流所携载的一个或一个以上或全部数据流感兴趣。同样,移动终端机可向所述基站或另一移动终端机传输数据。基站与移动终端机之间或者各移动终端机之间的这种通信可能会由于信道改变及/或干扰功率改变而出现降级。例如,上述改变可能会影响基站调度、功率控制及/或一个或多个移动终端机的速率预测。
在基于OFDMA系统的情况下,在其上传输通信信号所需的特定波形及功率通常表现出不符合需要的高峰均值比(PAR),这会由于非线性功率放大器的效率低下而限制OFDMA系统的覆盖。单载波FDMA系统可减轻与不符合需要的高PAR相关联的问题,但仍然受到各种限制,这就形成了此项技术中对减轻这类无线网络系统中各移动装置间及/或各扇区间干扰的系统及/或方法的需要。
发明内容
以下提供对一个或多个实施例的简要概述,以提供对这些实施例的基本理解。所述概述并非对所有涵盖实施例的广泛概述,且既不打算表示所有实施例的关键或紧要元件,也不打算描述任何或所有实施例的范畴。其唯一目的是以简要形式提供一个或多个实施例的某些概念作为稍后提供的更详细说明的前序。
根据一个方面,产生传输符号的方法可包括:产生至少一个单载波FDMA符号;指派一组用以传输所述至少一个符号的副载波;产生至少一个其它的单载波FDMA符号;及根据预定模式改变副载波组指派以用于传输至少一个其它单载波FDMA符号来。改变所述副载波组指派可包括改动预定偏移组内至少一个偏移的指派。所述预定模式可由若干帧的传输、时间周期的期满等来描述,且副载波组指派可以固定的间隔来改变,所述固定间隔由预定数量的单载波FDMA符号的传输来描述。另外,将副载波指派给用户装置可包括:产生包括多个节点的信道树;为每一子节点指派代表非负整数的节点值;及将用户装置指派给信道树中的节点以界定指派给用户装置的副载波组。
根据另一方面,一种促进单载波FDMA通信的跳频的设备可包括:存储器及与所述存储器耦合的处理器,所述处理器经配置以将偏移指派给用户装置且根据预定模式来改变所述用户装置的偏移。可为信道树中的节点指派值,且所述处理器可沿所述信道树中从指派给用户装置的节点到根节点的第一子节点的路径对所述信道树进行读取并评估所述路径的值。另外,所述处理器可进一步经配置以实施表格查找以识别对应于从指派给用户装置的节点到根节点的路径值的偏移并将至少一个用户装置指派给所识别的偏移。因此,可为所述用户装置指派对应于从根节点到指派给用户装置的节点的路径值的偏移。所述处理器可周期性地置换所述信道树中一个或多个节点的节点值指派,以通过改动从用户指派节点到根节点的路径的值来改动用户装置的偏移。
根据另一方面,设备可包括:用于产生至少一个单载波EDMA符号的装置;用于指派一组用以传输所述至少一个符号的副载波的装置;用于产生至少一个其它单载波FDMA符号的装置;及用于根据预定模式改变副载波组指派以用于传输所述至少一个其它单载波FDAM符号的装置。所述用于指派的装置可包括:用于将信道树内的节点指配给用户装置的装置;及用于为信道树内每一节点指派值的装置;及用于对信道树中从指配给用户的节点到根节点的路径进行读取以确定所述路径中节点值的装置,所述值识别用以指派给用户装置的副载波组及所述组中所包含的副载波数量。用于改变副载波组指派的装置可周期性地更改指派给信道树中一个或多个节点的值以改变指配给用户的节点与根节点之间路径的值。用于指派的装置可在所述装置实施改变以改变副载波组的指派时指派新的副载波组,所述新的副载波组与从指配给用户的节点到根节点的路径的改变值相关联。
另一方面涉及其上存储有计算机可执行指令的计算机可读媒体,所述计算机可执行指令用于将与偏移相关的实体指派给用户装置并部分地基于所指派的实体周期性地改变用户装置的偏移。所述计算机可读媒体可进一步包括用于如下操作的指令:为信道树的每一节点指派值;将节点指配给至少一个用户装置以将副载波组指派给所述至少一个用户装置;及根据一种模式置换节点值以改动指派给所述至少一个用户装置的副载波组。
另一方面涉及一种无线通信装置,其包括:存储器,其包含对应于用于传输单载波FDMA符号的多个偏移指派的信息;及处理器,其与所述存储器耦合,所述处理器经配置以基于所述信息根据预定模式来改变所述偏移指派。所述信息可对应于信道树中节点的值,且所述节点可对应于根节点及子节点。另外,所述信道树可为非二进制信道树,其中每一节点具有一个或多个子节点。此外,节点值可对应于通过沿信道树中从指派给用户装置到根节点的第一子节点的路径对所述信道树进行读取而产生的值并评估所述路径的值。可将与节点值、偏移、指派等相关的信息存储在无线通信装置内的查找表内。
为实现上述及相关目的,所述一个或多个实施例包括若干下文中全面阐述并在权利要求书中特别指出的特征。下文说明及附图详细阐述了所述一个或多个实施例的某些说明性方面。然而,这些方面仅指示各种可利用不同实施例原理的方式中的几种且所述实施例旨在包含所有这类方面及其等效物。
附图说明
图1图解说明根据各个方面的可结合单载波FDAM网络使用以促进改变用户装置偏移的二进制信道树。
图2是根据各个方面的二进制信道树的图解,所述二进制信道树可促进确定单载波FDAM无线通信环境中用户的偏移。
图3是根据各个方面的非二进制信道树的图解,其中用户装置被指配以所述树中的节点,且每一节点被指派值。
图4图解说明根据一个或多个方面的系统,所述系统可促进单载波FDMA无线通信环境中的跳频。
图5是根据各个方面的系统的图解,所述系统可促进在单载波FDMA环境(例如,IFDMA无线通信环境)中使用跳频技术。
图6是根据各个方面的系统的图解,所述系统可促进在单载波FDMA环境(例如,LFDMA无线通信环境)中使用跳频技术。
图7是根据各个方面的系统的图解,所述系统可促进单载波FDMA无线通信环境中的跳频。
图8是根据各个方面的系统的图解,所述系统可促进FDMA无线通信环境中的跳频技术。
图9是用于使用(例如)可与跳频协议结合使用的IFDMA协议来产生用以改善干扰分集的信号的方法的图解。
图10是根据一个或多个方面的用于结合IFDMA调制协议实施跳频的方法的图解。
图11图解说明根据一个或多个方面的用于使用可(例如)结合跳频协议使用的LFDMA协议来产生信号的方法。
图12图解说明根据一个或多个方面的用于更改LFDMA无线通信环境中用户的偏移指派的方法。
图13是根据一个或多个方面的可结合本文所述各种系统及方法使用的无线网络环境的图解。
具体实施方式
现在将参照图式来说明各实施例,在各图式中,自始至终使用相同的参考编号来指代相同的元件。在下文说明中,出于解释的目的,阐述了很多具体细节以便提供对一个或多个实施例的透彻了解。然而,显而易见,可在没有这些具体细节的情况下实践所述实施例。在其它实例中,以方块图的形式显示众所周知的结构和装置,以便于阐述一个或多个实施例。
本申请案中所用术语“组件”、“系统”及类似术语打算指代与计算机相关的实体,其既可为硬件、硬件与软件的组合、软件,也可为执行中的软件。例如,组件可为(但不限于)在处理器上运行的方法、处理器、对象、可执行文件、执行线程、程序、及/或计算机。一个或多个组件可驻存在执行过程及/或线程内,且组件可定域在一个计算机上且/或分布在两个或更多个计算机之间。此外,这些组件可从各种其上存储有各种数据结构的计算机可读媒体上执行。所述组件可通过本地及/或远程过程的方式来进行通信,例如,根据具有一个或多个数据分组的信号来进行通信(例如,来自一个与本地系统、分布式系统中的另一组件相互作用、及/或通过信号方式跨越网络(例如,因特网)与其它系统相互作用的组件的数据)。
此外,本文中将结合订户台来说明各种实施例。订户台也可称作系统、订户单元、移动台、移动装置、远程台、存取点、基站、远程终端机、存取终端机、用户终端机、用户代理、用户装置或用户设备。订户台可为蜂窝式电话、无绳电话、对话初始化协议(SIP)电话、无线本地环路(WLL)台、个人数字助理(PDA)、具有无线连接能力的手持式装置、或者其它连接至无线调制解调器的处理装置。
此外,可使用标准的编程及/或工程设计技术将本文所述的各种方面或特征实施为方法、设备或制品。本文所用术语“制品”打算囊括可从任一计算机可读装置、载体或媒体存取的计算机程序。例如,计算机可读媒体可包括(但不限于)磁性存储装置(例如硬盘、软盘、磁条…)、光盘(例如光碟(CD)、数字多用光盘(DVD)…)、智能卡、快闪存储器装置(例如,卡、棒、口袋式保密磁盘…)及集成电路(例如,只读存储器、可编程只读存储器、及电可擦可编程只读存储器)。
为促进跳频,可在无线网络中使用单载波FDMA调制技术。例如,可使用交错频分多路复用(IFDM)来保留与正交频分多路复用(OFDM)协议相关联的益处。另外,在某些情况下,与OFDM相比,单载波FDMA调制技术可具有峰均值比(PAR)较低的问题。类似地,根据相关方面,可使用经本地化的频分多路复用(LFDM),其还可表现出较低的PAR而同时保持与OFDM协议相关联的其它益处。LFDMA还可称为“窄频带”FDMA、经典FDMA或者简称为FDMA,且是一种单载波FDMA协议。
OFDMA调制符号处在频域中,且因此通过对所述调制符号序列实施快速傅立叶技术所获得时域信号可具有不符合需要的高PAR。通过比较,IFDMA调制符号处在时域中,且因此IFDMA调制技术不会表现出通常与OFDMA技术相关联的高PAR。因此,IFDMA(及类似地LFDMA)调制协议可减小不符合需要的高PAR及与其相关联的问题。
在IFDMA系统中,可使用总共NFFT个副载波,在多个用户之中分派所述NFFT个副载波。可为每一用户指配N个载波(其中N可在各用户之间改变)以及用户专用的副载波偏移U。因此,具有偏移U的用户占用载波{U,U+NFFT/N,U+2NFFT/N…U+(N-1)NFFT/N}。例如,在IFDMA系统,可在数个用户之中分派总共NFFT个副载波。可为每一用户指配N个载波(其中N可在用户装置之间改动)以及用户装置专用的副载波偏移U,其中0≤U<NFFT/N。当用户装置传输N个调制符号[d0d1d2…dN-1]时,用户装置通过实施如下动作来构造IFDMA符号:
(1)重复所述N个符号以获得总共NFFT个符号
[d0d1d2…dN-1d0d1d2…dN-1d0d1d2…dN-1…d0d1d2…dN-1]
(2)使所述序列中的第k个符号乘以e-jkΦU,其中Φ=2π/NFFT,
[d0d1e-jΦUd2e-2jΦU…dN-1e-(N-1)jΦU…dN-2e-(N FFT -2)jΦUdN-1e-(N FFT -1)jΦU]
(3)以可选方式将上述符号的后NCP个符号拷贝到开头(周期性前缀)
[…dN-2e-(N NFFT -2)jΦUdN-1e-(N FFT -1)jΦU][d0d1e-jΦU…dN-1e-(N-1)jΦU…dN-1e-(N FFT -1)jΦU]
然后,可将所获得的IFDMA符号转换成使用载波进行调制的模拟符号并以类似于OFDMA符号传输的方式来进行传输。前述内容是举例说明在反向链路及正向链路二者上产生IFDMA符号。另外,由于所述IFDMA信号在时域中具有周期性(相位e-jkΦU除外),所以所述信号可占用频率中的梳状部分(例如,只有一组等间隔的N个副载波具有非零功率,…)。更具体来说,具有偏移U的用户占用副载波组{U,U+NFFT/N,U+2NFFT/N…U+(N-1)NFFT/N},其中所述全组副载波的索引是从0到NFFT-1,以便可维持用户装置的正交性,因为具有不同偏移的用户装置占用不同的副载波组。
类似地,在LFDMA系统,可为用户指配数量为N个的相邻副载波(例如,在频域中连续的副载波,…)。例如,可存在总共NFFT个副载波,可在数个用户之中分派所述总共NFFT个的副载波。可为每一用户指配用户专用的副载波偏移U,以使具有偏移U的用户占用载波[U,U+1,…,U+N-1]。可为用户指配数量为N个的相邻副载波(例如,在频域中连续的副载波,…)。可为每一用户指配N个相邻的载波(其中N可在用户装置之间改动)以及用户专用副载波偏移U,其中0≤U<NFFT-N,且其中全组副载波的索引是从0到NFFT-1。传输一组N个调制符号[d0d1d2…dN-1]的用户可通过实施以下动作来产生传输信号:
(1)对[d0d1d2…dN-1]采取N-点快速傅立叶变换(FFT)以获得[D0D1D2…DN-1]
(2)将[D0D1D2…DN-1]放入经指配的副载波[U,U+1,…U+N-1]内
(3)采取NFFT-点的逆快速傅立叶变换以获得NFFT个时域样本。
(4)以可选方式将后NCP个时域样本拷贝到所述符号的开头作为循环前缀以获得LFDMA时域符号。
现在参照图式,图1图解说明根据各个方面的可结合单载波FDAM网络使用以促进改变用户装置偏移的二进制信道树100。树100包括多个节点,其每一者可与用户装置相关联。例如,第一节点102与用户A相关联,且指派节点104及106分别被指派给用户B及C。本文所述的各种实施例促进改变用户偏移(例如,跳跃偏移副载波组)。可使用符号率跳跃技术(例如,在传输每一符号时改变)、块跳跃技术(例如,在传输多个符号时改变)等来实施用户偏移改变。另外,可使用包含与偏移、副载波组等相关的信息的查找表来促进将偏移指派给用户并改变所述偏移的指派。可根据预定模式(例如,在传输单个符号、预定数量的符号、可变数量的符号、固定或可变时间周期、固定或可变数量的帧等时)来实施偏移指派的改变。
当使用IFDMA协议或LFDMA协议时,在具有NFFT=2n个可指派副载波的系统中,可为特定用户分配N=2m个副载波(其中m小于或等于n)。另外,不同用户可具有不同的m值。无论各用户间m的方差如何,二进制树100可促进指派用户偏移。例如,如上所述,可为每一用户指派树100内的节点。可使用树读取算法来计算既定用户的偏移。下文将关于图2来讨论这类算法及方法的实施例。
另外,结合本文中所述的各个方面,偏移指派可以是置换协议的一功能,凭借此功能,可通过信道树内的节点来置换预定的一组偏移,且因此可通过一组指配给信道树内节点的用户装置来置换预定的一组偏移。例如,可为信道树100内的节点指派第一组偏移,且可根据预定模式(例如,每一帧、每两帧、其每一符号或群组、每一或多毫微秒等)来改变这些偏移指派。另外,置换协议、预定偏移组、时间表等对于无线网络内的个别扇区及/或区域可是唯一的。
图2是根据各个方面的二进制信道树200的图解,所述二进制信道树可促进确定单载波FDAM无线通信环境中用户的偏移。树200包括多个节点,其每一者具有“0”值或“1”值。可将节点指派给无线网络的用户,且可通过沿向上或向下方向对树200进行读取来评估每一用户的偏移。
例如,当结合无线网络使用IFDMA协议时,为父节点的每一子节点指派“0”及“1”。所述指派可经常在扇区之间改变,以促进跳频及干扰分集。所述基于IFDMA的网络中的每一用户的偏移U是从用户指派节点向上读取的序列,其中所述指派给用户的节点代表偏移U中的最高有效位,而根节点的子节点代表偏移U中的最低有效位。因此,用户A具有偏移1,因为其被指派根节点的第一子节点。用户B具有偏移0,因为用户B的偏移中的最高有效位是“0”且是穿过根节点的“0”子节点向上读取的,所以总的值是“00”。用户C具有偏移2,因为用户C被指配“1”节点(其是穿过根节点的“0”子节点向上读取的),所以总值为二进制10或为十进制2。可从查找表中检索与用户指派节点相关联的与偏移相关的信息,所述查找表在将特定偏移指派给用户时包含这种信息。
另外,用户装置节点指配可与特定用户装置所需的副载波数量相关。例如,将用户A指配给树200内的第一子节点,以便用户A的直系后代(例如,用户A的经指配子节点及根节点)中存在两个位。在其中NFFT为512(例如,深度为9位的树)的情况下,用户A可具有至少NFFT/2的副载波需要。用户B及C具有长3个位的直系后代(其包括根节点),且因此位于代表十进制值4的第三个二进制位上。因此,用户B及C的偏移可包括数量等于NFFT/4的副载波等等。应了解,本文中所阐述的位、节点、用户、全部副载波等的数量为说明性且不应解释为具有局限性且还可随系统设计参数改变。相反,本文所述的各种实施例、方面、系统、方法、技术等可使用任何适合数量的上述事物以实现干扰分集及跳频。
根据相关实例,当使用LFDMA协议时,可自上而下地读取二进制树200以确定用户的偏移。节点指派“0”及“1”可随时间及在无线网络内的扇区之间改变。因此,用户的偏移是一个n-位数量,如果需要,可为其最低有效位填充若干个0。当沿向下方向读取树200时,用户A具有偏移2(例如,二进制10),用户B具有偏移0(例如,二进制00),且用户C具有偏移1(例如,二进制01)。可从查找表中收集与这类偏移相关的信息,且所述信息在这个实例中可分别对应于NFFT/2、0及NFFT/4。然后,可将与各自偏移相关联的副载波号指派给用户。
所属技术领域的技术人员应了解,尽管本文所述的各种实施例涉及IEDMA及LFDMA协议,但这类实施例可与任何适合的OFDMA系统结合使用。另外,可在扇区独立的基础上实施某些节点及其先辈的二进制值指派,以便无论所述用户处在哪一个扇区,指配给此一节点的用户都可保留相同的偏移。以此方式,可(例如)在扇区不使用此类节点时支持频率复用,而同时不使用此类节点的扇区可为其指配较弱的用户。
图3是根据不同方面的非二进制信道树300的图解,其中用户装置被指配所述树中的节点,且每一节点被指派值。非二进制信道树300类似于关于图2所阐述的二进制指派树。然而,信道树300内的节点指派并非局限于二进制值1或0,而相反可包括任一非负整数。如关于图2的二进制信道树所阐述,例如,对于具有四个子节点的节点,可为所述子节点指派值0-3(例如,二进制值00、01、10及11、整数值0、1、2及3等),而只具有一对子节点的父节点可使其子节点被指派值0及1。
在非二进制信道树300中,对应于特定节点的副载波数量可不只取决于所述节点到根节点的距离,还取决于所述特定节点的每一先辈的同胞节点的数量。例如,节点A可具有NFFT/16个载波,因为节点A的父节点是四个同胞节点的其中一个,且因此接收NFFT/4个副载波,然后,进一步在节点A的父节点的四个子节点(例如,节点A及其三个同胞节点)之中将其划分成四分,这导致对节点A的指派为1/4NFFT/4个副载波或NFFT/16个副载波。可为节点B指派NFFT/8个副载波,因为其具有一个同胞节点且其父节点是四个同胞节点的其中一个。因此,可为节点B指派其父节点的NFFT/4副载波指派的1/2或NFFT/8个副载波。节点C及D(其是直接悬挂在非二进制信道树300的根节点下面的一组四个同胞节点中的节点)可各自接收等于NFFT/4的副载波指派。可将与节点关系、偏移及副载波组等相关的信息存储在查找表中,可通过查找表来确定用户的指派偏移。应了解,可使用非二进制信道树来促进指派IFDMA及LFDMA副载波组的一者或二者。
当结合IFDMA通信环境实施偏移计算时,可通过自下而上地读取信道树300来计算偏移。例如,当穿过节点A的父节点朝向根节点读取时,节点A具有偏移1101,且可为节点A指派包括NFFT/16个副载波的偏移13。节点D可接收偏移2(例如,二进制10)。应注意,图中将节点B及C绘示为具有偏移值3(例如,分别为011及11)。在这种情况下,可为两个节点指派偏移3,且不会为其同时地指派所述偏移,而相反交替地进行指派以减轻冲突。
在LFDMA通信环境中,可通过自上而下地(例如,从根节点向下穿过特定的子节点)读取非二进制信道树300来计算偏移。可使用0填充技术以基于NFFT的值来填充从根节点到子节点读取的偏移值。例如,如果NFFT=512,则将NFFT代表成二进制数总共需要9个位。可使用0填充以通过零来填充每一偏移读数,直到所述偏移为9-位值。例如,当从根节点到节点A进行读取时,A具有0111的偏移,可用5个零来填充以使A的偏移成为9-位数,0111-00000=224。因此,可为节点A指派偏移224,根据所述实例,其将包括512/16个或32个载波。类似地,节点B具有偏移011-000000=192,节点C具有偏移11-0000000=384,且节点D具有偏移10-0000000=256。更一般地来阐述,节点A具有等于9NFFT/16的偏移,节点B被指派以等于3NFFT/8的偏移,节点C被指派以等于3NFFT/4的偏移,且节点D被指派以等于NFFT/2的偏移。
应了解,如上文关于图1所述,非二进制信道树300可使用一组预定的偏移,可在各用户装置与/或节点之中置换该组预定的偏移。另外,可根据预定模式(例如,每一帧,每一符号,在时间周期期满时等)来实施改变所述偏移,且此类时间表可专用于扇区。
关于图1-3,可随时间进行初始化时将所述节点的指派及跳跃序列从基站传输到用户装置。可在适合时对此进行更新。例如,可基于从基站发射的指令、通过针对到基站的传输(上行链路)及针对用户装置处的接收(下行链路)读取用户装置处的查找表来确定指派。根据一个方面,所述指令可包括序列的识别符,取决于存储在用户装置处的序列长度可对所述序列进行重复。在其它方面中,可基于来自基站的控制信道消息规律地更新所述节点值。
在某些实施例中,可将信道指派及单载波传输只应用于上行链路,而下行链路传输使用一种或多种OFDM方案。在这些情况下,可在下行链路上使用一种或多种独立于上行链路上所用方案的OFDM型存取方案。
图4图解说明根据一个或多个方面的系统400,所述系统可促进单载波FDMA无线通信环境中的跳频。跳频组件402在操作上与基站408相关联(例如,存取点)。如所属领域的技术人员了解,无线网络404可在一个或多个扇区及/或包括多个扇区的区域中包括一个或多个基站408。用户装置406可包括(但不限于)蜂窝式电话、智能电话、PDA、膝上型计算机、个人计算机及/或任一其它适合的用户可借以在无线网络404上进行通信的装置。单独的跳频组件410驻存在用户装置406处且可根据来自跳频组件402的指令来改变所述偏移。
跳频组件402可改变指配给信道树(例如,关于图1、2及3阐述的树)中节点的一个或多个用户装置406的节点值指派。可为信道树中的节点指派节点值(例如,非二进制、二进制等)且可穿过所述树来确定总体偏移指派。在二进制信道树的情况下,可为信道树中的每一父节点的子节点指派1及0,以使每一父节点具有1-子节点及0-子节点。可将用户装置406指配给此类节点,且取决于所使用的特定单载波FDMA协议,跳频组件402可读取所述二进制树以评估用户偏移指派,且可评估包含与各自偏移相关的信息(例如,偏移身份、副载波号,…)的查找表。另外,跳频组件402可针对不同扇区及在不同时间处改动节点值的指派(例如,1及0及或/其它二进制节点值、非二进制节点值等)以促进跳频及用户偏移指派的更改。应了解,跳频组件402可为无线网络404中一个或多个基站408的组成部分及/或为用户装置406的组成部分。
尽管图4绘示跳频组件402驻存在基站中,但应注意,跳频组件402可实施为无线网络404的基站408、基站控制器(未显示)等与用户装置406二者中功能性的组合(例如,跳频组件410)。在所述方面中,用户装置406及基站408中可包含单独的各自对应于偏移的查找表,两个装置(例如)通过来自对应于用户装置406的基站408或某一其它装置的指令来知道所述偏移。
在其中跳频组件402驻存在基站408内的各种实施例中,用户装置406可具有对应于序列的查找表,所述序列用于基于从基站408传输的并由跳频组件402产生的指令、命令等来改变所述偏移U。
图5是根据一个或多个方面的系统500的图解,所述系统可促进在单载波FDMA环境(例如,IFDMA无线通信环境)中使用跳频技术。跳频组件502在操作上与基站508相关联并成为基站508的组成部分。单独的跳频组件512驻存在用户装置506处且将根据来自跳频组件502的指令来改变所述偏移。
另外,跳频组件502及512分别与IFDMA组件510及514相关联,这促进使用IFDMA协议的无线通信。例如,在IFDMA系统中,可在数个用户装置506之中分派总共NFFT个副载波。可为每一用户装置506指配N个载波(其中N可根据不同用户装置而改变)以及用户装置专用的副载波偏移U,其中0≤U<NFFT/N。当用户装置506传输N个调制符号[d0d1d2…dN-1]时,用户装置506可通过实施以下动作来构造IFDMA符号:
(1)重复所述N个符号以获得总共NFFT个符号
[d0d1d2…dN-1d0d1d2…dN-1d0d1d2…dN-1…d0d1d2…dN-1]
(2)使序列中的第k个符号乘以e-jkΦU,其中Φ=2π/NFFT
[d0d1e-jΦUd2e-2jΦU…dN-1e-(N-1)jΦU…dN-2e-(N FFT -2)jΦUdN-1e-(N FFT -1)jΦU]
(3)以可选方式将以上符号的后NCP符号拷贝到开头(循环前缀)
[…dN-2e-(N FFT -2)jΦUdN-1e-(N FFT -1)jΦU][d0d1e-jΦU…dN-1e-(N-1)jΦU…dN-1e-(N FFT -1)jΦU]
然后,可将所获得的IFDMA符号转换成使用载波进行调制的模拟符号并对其进行传输。先前所述是举例说明反向链路及正向链路二者上IFDMA符号的产生。另外,由于所述IFDMA符号在时域中具有周期性(相位e-jkΦU除外),所以所述信号可占用频率内的梳状部分(例如,只有一组N个等间隔的副载波具有非零功率,…)。更具体来说,具有偏移U的用户装置506占用副载波组{U,U+NFFT/N,U+2NFFT/N…U+(N-1)NFFT/N},其中所述全组副载波的索引是从0到NFFT-1,以便可维持用户装置的正交性,因为具有不同偏移的用户装置占用不同的副载波组。跳频组件502可产生或存储对应于偏移、节点值指派等的查找表,且可将用户装置506指派给如关于图1-3所述的节点。另外,如果使用IFDMA协议,则跳频组件502可从根节点向下读取所述树以识别特定用户装置的偏移U。应了解,将用户装置指派给特定节点的方式可包括任意指派、使用非二进制节点值的、使用二进制节点值的信道树内节点指派、或任一其它适合的使偏移与节点及/或用户装置506相关联的方式。然而,应理解,可根据预定模式及/或在发生事件(例如,一个或多个符号的传输、一个或多个帧的传输、时间周期的期满…等)时任意地、随机地改变节点值指派。
尽管图5将跳频组件502绘示成驻存在基站中,但应注意,跳频组件502可实施为基站508、基站控制器(未显示)中与用户装置506二者中的功能性组合(例如,跳频组件512)。在所述方面中,用户装置506及基站508中可包含单独的查找表(其各自对应于用户装置的偏移U的序列),两个装置可(例如)通过来自对应于用户装置506的基站508或某一其它装置的指令来知道所述用户装置的偏移U的序列。
在其中跳频组件502驻存在基站508内的实施例中,用户装置506可具有对应于序列的查找表,所述序列用于基于从基站508传输的并由跳频组件502产生的指令、命令等来改变所述偏移U。
图6是根据一个或多个方面的系统600的图解,所述系统可促进在单载波FDMA环境(例如,LFDMA无线通信环境)中使用跳频技术。系统600包括在操作上与存取点608相关联的跳频组件602。单独的跳频组件614驻存在用户装置606处且可根据来自跳频组件602的指令来改变所述偏移。
如以上关于图5所述,跳频组件602可进一步在操作上与可促进无线网络604上通信的IFDMA组件610相关联。另外及/或作为另一选择,跳频组件602可进一步在操作上耦合至LFDMA组件612,所述LFDMA组件可促进基站608与用户装置606之间的LFDMA通信。类似地,跳频组件614可在操作上耦合至用户装置606中的IFDMA组件616及LFDMA组件618。跳频组件602可产生用于为用户装置606指派偏移的信道树,以将多个用户装置606的每一者指配给偏移树内的节点。所述树内的每一节点可具有值,且跳频组件602可经常及/或在扇区之间改动所述节点值以提供干扰分集及跳频功能性。在确定与特定节点相关联的值时,跳频组件602可实施表格查找以评估指派给用户装置606的相关联偏移。
关于LFDMA组件612及618,可为用户装置606指配数量为N的相邻副载波(例如,在频域中连续的副载波,…)。例如,在LFDMA系统中,可在数个用户装置606之中划分总共NFFT个副载波。可为每一用户装置606指配N个相邻载波(其中N可在用户装置之间改动)以及用户装置专用的副载波偏移U,其中0≤U<NFFT-N,且其中全组副载波的索引是从0到NFFT-1。传输一组N个调制符号[d0d1d2…dN-1]的用户装置可通过实施以下动作来产生传输信号:
(1)对[d0d1d2…dN-1]采取N-点快速傅立叶变换(FFT)以获得[D0D1D2…DN-1]
(2)将[D0D1D2…DN-1]放入经指配的副载波[U,U+1,…U+N-1]内
(3)采取NFFT-点的逆快速傅立叶变换以获得NFFT个时域样本。
(4)以可选方式将后NCP个时域样本拷贝到所述符号的开头作为循环前缀以获得LFDMA时域符号。
在以上产生LFDMA信号的实例中,可为不同用户装置606指配不相交的副载波组以确保用户装置606互相正交。如关于图1-3所阐述,然后,跳频组件602可产生指派树并评估用户装置606到其中节点的指派,且如果使用LFDMA协议,则可从根节点向下读取所述树以识别特定用户装置的偏移U。
尽管图6绘示跳频组件606驻存在基站中,但应注意,跳频组件602可实施为无线网络604的基站608、基站控制器(未显示)等与用户装置606二者中的功能性组合(例如,跳频组件614)。在所述方面中,用户装置606及基站608中可包含单独的查找表(其各自对应于用户装置606的偏移U的序列),两个装置可(例如)通过来自对应于用户装置606的基站608或某一其它装置的指令来知道所述用户装置的偏移U的序列。
在其中跳频组件602驻存在基站608内的各种实施例中,用户装置606可具有对应于序列的查找表,所述序列用于基于从基站608传输的并由跳频组件602产生的指令、命令等来改变所述偏移U。
另外,根据本文所述的各个方面,IFDMA组件610和616及LFDMA组件612和618可彼此结合地使用以促进产生副载波指派,所述副载波指派包括横跨可用总带宽一部分的等距副载波。此外,当使用IFDMA协议时,可在可用宽带的一部分上使用快速跳跃技术。在典型的OFDMA上行链路上,可为用户装置指派一组副载波,保持所述副载波组不变达一段时间以让用户装置估计所述副载波组上的信道。然而,如果用户装置的指派足够大以致用户装置可对整个带宽上的信道进行估计,则可使用符号率跳跃协议(例如,在传输每一符号时改变用户装置的副载波组指派),因为在每一符号时进行跳跃没有任何害处。
图7是系统700的图解,所述系统可促进单载波FDMA无线网络环境中的跳频。跳频组件702可在操作上与无线网络704内的基站708相关联。分离跳频组件718驻存在用户装置706处且可根据来自跳频组件702的指令来改变所述偏移。
如所属技术领域的技术人员应了解,无线网络704可在一个或多个扇区及/或包括多个扇区的区域等中包括一个或多个基站708。用户装置706可包括(但不限于):蜂窝式电话、智能点电话、PDA、膝上型计算机、个人计算机及/或任一其它适合的用户可借以在无线网络704上进行通信的装置。如上文关于先前图式所阐述,基站708中的跳频组件702可与IFDMA组件710及/或LFDMA组件712或任一其它适合的单载波FDMA系统相关联以促进符号的产生。类似地,用户装置706中的跳频组件718可在操作上耦合至IFDMA组件720及LFDMA组件722的每一者。
基站708及/或用户装置706可另外及各自包括存储器714及724,所述存储器在操作上耦合至跳频组件702及718,且存储与可使用的信道树产生或预产生的信道树信息相关的信息、信道树中节点的节点值指派(例如,非二进制、二进制、整数等)、用户装置节点指配、树读取算法(例如,对于LFDMA自上而下,对于IFDMA自下而上,…)、信号产生算法(例如,用于使用IFDMA、LFDMA、单载波FDMA来产生信号,…)、节点值指派改变(例如,跳频,…)的时间表、与偏移信息及/或节点值指派相关的查找表、及任一其它适合的有关提供干扰分集(例如,跳频)以减轻一个或多个用户装置706干扰的信息。处理器716及726可在操作上分别连接至跳频组件702及718及/或存储器714及724以促进分析有关跳频、对一个或多个用户装置706的节点指派及/或指配、树读取算法、信号产生等的信息。应了解,处理器716可为专用于分析及/或产生跳频组件702所接收信息的处理器、对基站708中一个或多个组件进行控制的处理器、及/或既分析并产生跳频组件702所接收的信息又控制基站708中一个或多个组件的处理器。以类似的方式,处理器726可为专用于分析跳频组件718所接收信息的处理器、控制用户装置706的一个或多个组件的处理器及/或既分析跳频组件718所接收的信息又控制用户装置706中一个或多个组件的处理器。
存储器714及724可另外存储与产生信号、符号、信道树、查找表等相关联的协议,以便用户装置706及/或基站708可使用所存储的协议及/或算法来实现本文所述的干扰分集。应了解,本文所述的数据存储组件(例如,存储器)可为易失性或非易失性存储器,或可包括易失性及非易失性存储器二者。通过图解而非限定的方式,非易失性存储器可包含只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除ROM(EEPROM)、或快闪存储器。易失性存储器可包含用作外部高速缓冲存储器的随机存取存储器(RAM)。通过图解而非限定的方式,RAM具备许多种形式,例如,同步RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双倍数据速率SDRAM(DDR SDRAM)、增强的SDRAM(ESDRAM)、同步链路DRAM(SLDRAM)、及直接内存总线RAM(DRRAM)。本发明系统及/或方法中的存储器714及724旨在包括但不限于这些及任何其它适合类型的存储器。
尽管图7绘示跳频组件702驻存在基站708中,但应注意,跳频组件702可实施为无线网络704的基站708、基站控制器(未显示)或类似装置中与用户装置706二者中的功能性组合(例如,跳频组件718)。在所述方面中,用户装置706及基站708中可包含单独的查找表(其各自对应于用户装置的偏移U的序列),两个装置可(例如)通过来自对应于用户装置706的基站708或某一其它装置的指令来知道所述用户装置的偏移U的序列。
在其中跳频组件702驻存在基站708内的实施例中,用户装置706可具有对应于序列的查找表,所述序列用于基于从基站708传输的并由跳频组件702产生的指令、命令等来改变所述偏移U。
图8是根据不同方面的系统800的图解,所述系统可促进FDMA无线通信环境中的跳频技术。跳频组件802在操作上与基站808相关联。单独的跳频组件824驻存在用户装置806处,且可根据来自跳频组件802的指令来改变所述偏移。
如所属技术领域的技术人员应了解,无线网络804可在一个或多个扇区及/或包括多个扇区的区域等中包括一个或多个基站808、中继器、收发器等(未显示)。用户装置806可包括(但不限于)蜂窝式电话、智能电话、PDA、膝上型计算机、个人计算机及/或任一其它适合的用户可借以在无线网络804上进行通信的装置。如上文关于先前图式所阐述,基站808中的跳频组件802可在操作上与IFDMA组件810及/或LFDMA组件812或任一其它适合的单载波EDMA系统相关联以促进通信符号的产生。同样,用户装置806内的跳频组件824可在操作上与IFDMA组件826及LFDMA组件828的一者或二者相关联。跳频组件802可进一步与基站808中的指派组件820相关联,所述指派组件至少部分地基于存储在查找表(其可保持在存储器814及/存储器830中)内的偏移信息将节点指派给用户装置806。可将所述指派传输至用户装置806内的指派接收器822并由用户装置806内的跳频组件824来解码。指派组件820可将信道树中的节点指派给用户装置,且跳频组件802可改变偏移(例如,通过置换/改动节点值的指派)以维持偏移分集并促进减少各用户装置806之间及/或用户装置806在其上进行通信的各网络扇区之间的干扰。另外,跳频组件802可将节点值指派给(例如)关于图2所述的二进制信道树中的节点及/或指派给(例如)关于图3所述的非二进制信道树中的节点以促进将偏移提供至用户装置806。此外,跳频组件802可结合置换协议来使用非二进制信道树以优化干扰的降低。
如上所述,跳频组件802可将副载波组(例如,偏移)指派给用户装置806以在通信事件期间传输一个或多个符号。例如,跳频组件802可在第一时间点处产生及/或传输偏移指派,且可根据预定模式(例如,在每一符号、符号群组、一个或多个帧传输/接收之后,…)来改变所述指派。为进一步举例说明这个实例,可在预定周期之后改变对用户装置806的副载波组指派,所述预定周期可由固定数量的符号(例如,IEDMA符号、LFDMA符号或任何其它适合的单载波FDMA符号)的传输来进行描述。
用户装置806中的指派接收器822接收副载波组指派(例如,偏移指派)以使用户装置806能够对经指派用于在通信事件期间传输一个或多个符号(例如,EFDMA、LFDMA,…)的副载波组施加控制。指派接收器822可接收及/或接受节点指派且可第一时间点处确定装置806的偏移。然后,可在预定时间周期之后(例如,在传输/接收每一符号、符号群组之后,…)在更改节点值指派时确定及/或计算所述第二偏移。根据这个实例,可在预定周期之后(例如,通过改变用户装置所指派给的节点的节点值等)改变对用户装置806的偏移指派,所述预定周期可由若干符号(例如,EFDMA符号、LFDMA符号或任何其它适合的单载波FDMA符号)的传输来描述。此外,基站808可使用存储器814、处理器816及AI组件818以结合本文所述的各种跳频协议来促进指派、指派改变、确认、使用等。出于类似的目的,用户装置806可使用存储器830、处理器832及AI组件834。
AI组件818及834可在操作上各自与基站808及用户装置806一者或二者中的跳频组件802及824相关联,且可关于信道树产生、节点值指派及对其的更改、用户装置806的节点指配等进行推断。如本文中使用,术语“推断(infer)”或“推断(inference)”通常是指根据一组经由事件及/或数据捕获而得的观测结果对系统、环境及/或用户状态进行推理或推断的过程。例如,推断可被用来识别具体的上下文或动作,或者可产生(例如)状态的概率分布。推断可为概率性的,亦即,基于对数据及事件的考虑来计算所关心状态的概率分布。推断还可指用于根据一组事件及/或数据来构成更高级事件的技术。此种推断可使得根据一组所观测的事件及/或所存储事件数据构造出新的事件或动作,无论所述事件是否以时间上紧邻的形式相关,且无论所述事件及数据是来自一个还是来自数个事件及数据源。
根据一个实例,AI组件818及/或834可推断适合的树结构以至少部分地基于(例如)信道质量、所检测的干扰、可用副载波的数量、在无线网络804上进行操作的用户装置806的数量等来代表用户装置的偏移。根据这个实例,可以确定的是无线网络804中的特定扇区正在经历高的传输量等。AI组件818结合处理器816及/或存储器814可确定各用户装置806之间及/或各扇区之间的干扰是高的。AI组件818可推断频率调节适于增加干扰分集并减轻干扰问题,且可指挥跳频组件802以更改信道树中的子节点值的指派,这将导致更改对指配给所述经更改子节点的用户装置806的偏移指派。在此种情况下,AI组件818可使用可能的最成本有效的方式来促进跳频以减轻小区间干扰并改善干扰分集。应了解,上述实例仅为说明性且并非旨在限定可由AI组件818及834作出的推断范畴或者限定AI组件818及834作出此等推断的方式。
尽管图8绘示跳频组件802驻存在基站808中,但应注意,跳频组件802可实施为无线网络804的基站808、基站控制器(未显示)等与用户装置806二者中的功能性组合(例如,跳频组件824)。在所述方面中,用户装置806及基站808中可包含单独的查找表(其各自对应于用户装置的偏移U的序列),两个装置可(例如)通过来自对应于用户装置806的基站808或某一其它装置的指令来知道所述用户装置的偏移U的序列。
在其中跳频组件802驻存在基站808内的实施例中,用户装置806可具有对应于序列的查找表,所述序列用于基于从基站808传输的并由跳频组件802产生的指令、命令等来改变所述偏移U。
图9是方法900的图解,其用于使用(例如)可与跳频协议结合使用的IFDMA协议来产生用以改善干扰分集的信号。在902处,用户装置可开始通过重复N个符号以获得总共NFFT个符号来产生包括N个调制符号(例如,[d0d1d2…dN-1])的信号,如下:
[d0d1d2…dN-1d0d1d2…dN-1d0d1d2…dN-1…d0d1d2…dN-1]
在904处,用户装置可使所述序列中的第k个符号乘以e-jkΦU,其中Φ=2π/NFFT,如下:
[d0d1e-jΦud2e-2jΦU…dN-1e-(N-1)jΦU…dN-2e-(N FFT -2)jΦUdN-1e-(N FFT -1)jΦU]
在906处,可通过将904处所产生信号的后NCP个符号拷贝到所述符号表达式的开头,以可选方式将循环前缀添加至所述信号,如下:
[…dN-2e-(N FFT -2)jΦUdN-1e-(N FFT -1)jΦU[d0d1e-jΦU…dN-1e-(N-1)jΦU…dN-1e-(N FFT -1)jΦU]
在IFDMA通信环境中,可结合本文所述的跳频技术使用方法900来减轻无线通信环境中各用户间及/或各扇区间的干扰。所属技术领域的技术人员应了解,虽然上文关于IFDMA系统对本文各种方法及/或系统进行了阐述,但也可使用适合的具有IFDMA系统的所述特征及/或优点的FDMA系统布局。
图10是方法1000的图解,所述方法用于在无线网络通信环境中结合IFDMA调制协议来实施跳频。在1002处,可产生信道树以促进用户偏移的跳频。所述信道树可具有根节点,且可为所述根节点的每一子节点及/或所述树中的其它父节点指派节点值(例如,非二进制、二进制等)。在此,为简化图解说明对二进制信道树的情况进行阐述,其中每一子节点可具有0或1的二进制值,因此父节点具有0-子节点及1-子节点。如关于图1-3所详述,可取决于用户装置的副载波需要来为用户装置指配节点,以相比于需要副载波数量相对较少的用户装置,可为需要副载波数量相对较大的用户装置指配更靠近根节点的节点。在某些方面中,预产生所述信道树,且以查找表等形式将所述节点、其关系及值存储在存储器中。
如关于图2及3所详述,在1004处,可从信道树中的指配给用户的节点向上到第一子节点来读取用户装置的节点序列以确定用户偏移的值。可从查找表收集1004处与所识别偏移相关的信息以促进将具体副载波组指派给用户。例如,可为经指配而具有1值的节点的用户指派偏移3,所述节点悬挂在具有1值的父节点下面,而所述父节点又悬挂在所述树的根节点下面。另外,由于指配给用户的节点距离所述树的顶端三个节点(其中包括经指配的节点及根节点,出于确定偏移U的目的并不读取所述根节点,但确定副载波数量时会将其计算在内),所以可为其指派数量等于NFFT/4的偏移副载波。根据图解说明二进制信道树的另一实例,可为其所指配的节点距离根节点四个节点(其中包括所述根节点)且其直系后代全部为1(例如,指配节点=1,父节点=0,祖父节点=1,根节点)的用户指派偏移7(例如,二进制111),其可具有数量等于NFFT/8的副载波。根据另一实例,如果上方的直系后代是101(例如,指配节点=1,父节点=0,祖父节点=1,根节点),则可为所述用户指派具有数量等于NFFT/8的副载波的偏移5等。
如关于图9所详述,在1006处,可产生IFDMA符号。在1008处,可将此类符号/信号转换成模拟信号以促进其传输。在1010处,可修改节点值指派以促进跳频以减轻干扰。例如,可更改信道树中一个或多个子节点值的指派以改变与指配给用户的节点实际相关联的偏移。例如,在以上实例中,在1010处,指配给用户的包括NFFT/8个副载波的偏移1(例如,二进制111)可使其父节点对得到更改,以致其节点的指配直系后代变为二进制101,这本身也会导致为用户重新指派偏移5等。根据所述实例,在节点值指派改变期间,用户节点的指配可为静态的以确保用户保留数量等于NFFT/8的副载波。另外,可根据预定时间表及/或根据触发事件(例如,在传输每一EFDMA符号(符号率跳跃)、每数个符号(块跳跃)等时)来实施用户偏移的修改。
应了解,尽管前文实例阐述使用二进制节点值指派的信道树,但可将非二进制指派给此类节点。此外,父节点可具有任何适合数量的与其相关联的子节点以促进将偏移指配给用户装置并实施跳频以减轻干扰。
图11图解说明方法1100,其用于使用可(例如)结合跳频协议使用的LFDMA协议来产生用以改善干扰分集的信号。在1102处,用户装置可可开始通过对N个调制符号(例如,[d0d1d2…dN-1])采取N-点快速傅立叶变换(FFT)来产生包括所述N个调制符号的信号以获得[D0D1D2…DN-1]。在1304处,然后,可将所述变换的符号放入所指配的副载波[U,U+1,…U+N-1]内。在1106处,可实施NFFT-点逆快速傅立叶变换以获得NFFT个时域样本。如果需要,可通过将后NCP个时域样本拷贝到所述符号的开头从而以可选的方式将循环前缀添加至所述符号以获得LFDMA时域符号。
可使用方法1100以结合跳频技术来产生LFDMA通信信号以减各轻装置间及/或各扇区间的干扰。例如,可在每一LFDMA符号(例如,使用符号率跳跃技术)、在每数个LFDMA符号(例如,使用块跳跃技术等)时实施跳频。
图12图解说明方法1200,其用于更改针对LFDMA无线通信环境中用户的偏移指派。在1202处,可产生信道树以映射用户偏移指派,且可将所述树中的节点指配给无线网络中的个别用户。可以类似于关于图1、2及3所述的方式来实施节点指配。在某些方面中,预产生所述信道树,且以查找表等形式将所述节点、其关系及值存储在存储器中。
在1204处,可自上而下地读取所述信道树以评估用户偏移的指派。尽管为简单起见以下实例阐述二进制节点值指派,但应了解,可将非二进制值及/或任何其它适合的值指派给信道树中的节点。例如,可为经指配而具有值1的节点的用户指派偏移1,所述节点悬挂在具有值0的父节点下面,而所述父节点又悬挂在所述树的根节点下面。另外,因为指配给用户的节点距离所述树的顶端三个节点(其中包括根节点,出于确定偏移U的目的并不读取所述根节点,但在确定副载波数量时会将其计算在内),所以可为其指派数量等于NFFT/4的偏移副载波。根据另一实例,可为其所指配的节点距离根节点四个节点(其中包括根节点)且直系后代为二进制110(例如,指配节点=1,父节点=1,祖父节点=1,根节点)的用户指派偏移6(例如,二进制110),其可具有数量等于NFFT/8的副载波。根据另一实例,如果上方的直系后代是101(例如,指配节点=1,父节点=0,祖父节点=1,根节点),则可为所述用户指派具有数量等于NFFT/8的副载波的偏移5等。
在1206处,可如关于图10所述产生LFDMA信号并将其转换成模拟信号以便进行传输。在1208处,可改变信道树中的节点值指派以促进跳频,例如,关于图10所阐述。如果需要,则可在节点值指派改变期间维持用户节点指配(例如,处于静态),以维持距离所述偏移树根节点的恒定距离,这也可促进确保无论跳频如何都可将准确数量的副载波指派给既定的用户。根据相关的方面,可至少部分地基于与用户资源要求相关的信息,动态地将其频率及/或副载波要求由于先前的节点指配重复而发生改变的用户重新指配给信道树上更高或更低的节点。以此方式,可在单载波FDMA系统(例如,LFDMA系统)中使用跳频以改善干扰分集且可为使用方法1200的无线网络的用户提供更为稳健的通信经验。
图13显示例示性无线通信系统1300。为简明起见,无线通信系统1300绘示一个基站和一个终端机。然而,应了解,所述系统可包括一个以上的基站及/或一个以上的终端机,其中额外的基站及/或终端机大体上可类似于或者不同于下文所述的例示性基站及终端机。此外,应了解,基站及/或终端机可使用本文所述的系统(图1-8)及/或方法(图9-12)来促进其间的无线通信。
现在参照图13,在下行链路上,在存取点1305处,传输(TX)数据处理器1310接收、格式化、编码、交错、及调制(或者符号映射)业务数据并提供调制符号(“数据符号”)。符号调制器1315接收并处理所述数据符号及导频符号并提供符号流。符号调制器1320在适当的子频带上对数据及导频符号进行多路复用,为每一未使用的子频带提供零信号值,且每一符号周期获得N个子频带的一组N个发射符号。每一发射符号可为数据符号、导频符号、或零信号值。所述导频符号可在每一符号周期内连续发送。应了解,可对所述导频符号进行时分多路复用(TDM)、频分多路复用(FDM)、或者码分多路复用(CDM)。符号调制器1320可使用N点IFFT将每一组N个发射符号变换至时域,以获得含有N个时域码片的“已变换”符号。符号调制器1320通常会重复每一所变换符号的一部分,以获得对应的符号。所重复部分称为循环前缀,并用来抵抗无线信道中的延迟扩展。
发射器单元(TMTR)1320接收所述符号流并将其转换成一个或多个模拟信号,并进一步调节(例如,放大、滤波及上变频)所述模拟信号,以产生适于在无线信道上发射的下行链路信号。然后,经由天线1325将所述下行链路信号发射至终端机。在终端机1330处,天线1335接收所述下行链路信号并将所接收的信号提供至接收器单元(RCVR)1340。接收器单元1340调节(例如,滤波、放大、及下变频)所接收的信号,并将经调节的信号数字化以获得样本。符号解调器1345移除附加至每一符号的循环前缀,使用N-点FFT将每一所接收的已变换符号变换至频域,每一符号周期获得所述N个子频带的N个接收符号,且将所接收的导频符号提供至处理器1350以用于信道估计。符号解调器1345进一步从处理器1350接收下行链路的频率响应估计,对所接收的数据符号实施数据解调以获得数据符号估计(其为所传输数据符号的估计),并将所述数据符号估计提供至RX数据处理器1355,所述RX数据处理器对数据符号估计进行解调(即,符号解映射)、解交错及解码以恢复所发射的业务数据。符号解调器1345及RX数据处理器1355所执行的处理分别与符号调制器1315及TX数据处理器1310在存取点1305处执行的处理互补。
在上行链路上,TX数据处理器1360处理业务数据并提供数据符号。符号调制器1365接收所述具有导频符号的数据符号并对其进行多路复用,执行符号调制,并提供符号流。可在指配给终端机1330以供导频传输之用的子频带上传输所述导频符号,其中所述上行链路的导频子频带的数量可相同于或者可不同于下行链路导频子频带的数量。然后,发射器单元1370接收并处理所述符号流,以产生上行链路信号,所述上行链路信号可通过天线1335发射至存取点1305。
在存取点1305处,来自终端机1330的上行链路信号由天线1325接收并由接收器单元1375处理以获得样本。然后,符号解调器1380处理所述样本并为上行链路提供接收的导频符号及数据符号估计。RX数据处理器1385处理数据符号估计,以恢复终端机1335所传输的业务数据。处理器1390对每一在上行链路上进行传输的活动终端机实施信道估计。多个终端机可在上行链路上、在其各自所指配的导频子频带组上同时传输导频,其中所述导频子频带组可交织。
处理器1390及1350分别指挥(例如,控制、协调、管理等)存取点1305及终端机1335处的操作。各自处理器1390及1350可与存储程序代码及数据的存储器单元(未显示)相关联。处理器1390及1350还可实施计算以分别得出上行链路及下行链路的频率及脉冲响应估计。
在另外的方面中,可提供多天线发射器。在这些方面中,可在TX数据处理器1310的输入端处提供解多路复用器,所述TX数据处理器根据不同的子频带产生多个单独处理、编码及解调的数据流。另外,可在TX数据处理器1310或调制器1320的输出端处提供MBVIO处理,以在发射之前但在数据处理之后形成多个发射流。在接收器1330处,可使用不同的技术来解码来自多个天线的信号。
对于多址系统(例如,频分多址(FDMA)系统等),多个终端机可同时在上行链路上进行传输。对于此类系统,可在不同终端机之中共享所述导频子频带。信道估计技术可用于其中每一终端机的导频子频带横跨整个操作频带(可能地频带边缘除外)的情况。为获得每一终端机的频率分集,期望使用这种导频子频带结构。本文所述技术可由各种装置来实施。例如,这些技术可构建在硬件、软件、或其一组合中。对于硬件实施方案,信道估计所用的处理单元可构建在一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理装置(DSPD)、可编程逻辑装置(PLD)、场可编程门阵列(FPGA)、处理器、控制器、微控制器、微处理器、其它设计用于执行本文所述功能的电子单元、或其一组合中。对于软件,可通过实施本文所述功能的模块(例如,程序、功能等)来进行构建。软件代码可存储在存储器单元中并由处理器1390及1350来执行。
上文所述包括一个或多个实施例的实例。当然,不可能出于说明前述实施例的目的而说明各组件或方法的每一种可构想组合,但所属技术领域的技术人员可认识到,各个实施例都可存在很多进一步的组合及排列。相应地,所述实施例旨在囊括归属于随附权利要求书的精神及范畴内的所有这些改变、修改及改动型式。此外,关于本详细说明或权利要求书中使用措词“包含(includes)”这一点,所述措词的包含方式拟与措词“包括(comprising)”在权利要求中用作转折词时所解释的方式相同。
Claims (70)
1.一种用于无线通信的设备,其包括:
存储器,其经配置以存储与可用于单载波频分多址FDMA符号传输的多个偏移有关的信息,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
处理器,其与所述存储器耦合,所述处理器经配置以基于预定模式将偏移指派给用户装置并更改用于所述用户装置的所述偏移。
2.如权利要求1所述的设备,其中所述处理器进一步经配置以使用具有多个节点的信道树,将所述信道树中的节点指派给所述用户装置,以及基于指派给所述用户装置的所述节点确定用于所述用户装置的所述偏移。
3.如权利要求2所述的设备,其中所述信道树是具有每一非叶节点的非二进制信道树,其中每一非叶节点具有一个或多个子节点。
4.如权利要求3所述的设备,其中所述信道树中的每一子节点被指派非二进制值。
5.如权利要求2所述的设备,其中所述处理器进一步经配置以确定指派给所述用户装置的所述节点与所述信道树中的根节点之间的路径并基于所述路径确定用于所述用户装置的所述偏移。
6.如权利要求5所述的设备,其中所述处理器进一步经配置以基于所述路径中的节点的值确定所述路径的值并基于所述路径的所述值确定用于所述用户装置的所述偏移。
7.如权利要求6所述的设备,其中所述处理器进一步经配置以实施表格查找以识别对应于所述路径的所述值的偏移并将所识别的偏移指派给所述用户装置。
8.如权利要求2所述的设备,其中所述处理器进一步经配置以通过周期性地改变所述信道树中的一个或多个节点的值的指派来更改用于所述用户装置的所述偏移。
9.如权利要求1所述的设备,其中所述处理器进一步经配置以确定指派给所述用户装置的副载波的数量。
10.如权利要求1所述的设备,其中所述处理器进一步经配置以通过使用交织频分多址IFDMA通信协议来确定用于所述用户装置的所述偏移。
11.如权利要求1所述的设备,其中所述处理器进一步经配置以通过使用本地化的频分多址LFDMA通信协议来确定用于所述用户装置的所述偏移。
12.如权利要求1所述的设备,其中所述处理器进一步经配置以周期性地更改用于所述用户装置的所述偏移。
13.如权利要求1所述的设备,其中所述处理器进一步经配置以使用符号率跳跃且在所述用户装置传输每一单载波频分多址FDMA符号时更改用于所述用户装置的所述偏移。
14.如权利要求1所述的设备,所述处理器进一步经配置以使用块跳跃技术且在所述用户装置传输单载波频分多址FDMA符号的块时更改用于所述用户装置的所述偏移。
15.一种用于无线通信的方法,其包括:
将偏移指派给用户装置,所述偏移是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
基于预定模式更改用于所述用户装置的所述偏移。
16.如权利要求15所述的方法,进一步包括:将信道树中的节点指派给所述用户装置;以及基于指派给所述用户装置的所述节点确定用于所述用户装置的所述偏移。
17.如权利要求16所述的方法,进一步包括:确定指派给所述用户装置的所述节点与所述信道树中的根节点之间的路径;以及基于所述路径确定用于所述用户装置的所述偏移。
18.如权利要求17所述的方法,进一步包括:基于所述路径中的节点的值确定所述路径的值;以及基于所述路径的所述值确定用于所述用户装置的所述偏移。
19.如权利要求15所述的方法,进一步包括:确定指派给所述用户装置的副载波的数量。
20.如权利要求15所述的方法,其中所述更改所述偏移包括在所述用户装置传输单载波频分多址FDMA符号的块时更改用于所述用户装置的所述偏移。
21.一种用于无线通信的设备,其包括:
用于将偏移指派给用户装置的构件,所述偏移是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
用于基于预定模式更改用于所述用户装置的所述偏移的构件。
22.如权利要求21所述的设备,进一步包括:用于将信道树中的节点指派给所述用户装置的构件;以及用于基于指派给所述用户装置的所述节点确定用于所述用户装置的所述偏移的构件。
23.如权利要求22所述的设备,进一步包括:用于确定指派给所述用户装置的所述节点与所述信道树中的根节点之间的路径的构件;以及用于基于所述路径确定用于所述用户装置的所述偏移的构件。
24.如权利要求23所述的设备,进一步包括:用于基于所述路径中的节点的值确定所述路径的值的构件;以及用于基于所述路径的所述值确定用于所述用户装置的所述偏移的构件。
25.如权利要求21所述的设备,进一步包括:用于确定指派给所述用户装置的副载波的数量的构件。
26.如权利要求21所述的设备,其中所述用于更改所述偏移的构件包括用于在所述用户装置传输单载波频分多址FDMA符号的块时更改用于所述用户装置的所述偏移的构件。
27.一种非暂态计算机可读媒体,其上存储有用于如下操作的计算机可执行指令:
将偏移指派给用户装置,所述偏移是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
基于预定模式更改用于所述用户装置的所述偏移。
28.如权利要求1所述的设备,其中所述处理器进一步经配置以:将基于所述偏移确定的第一组副载波指派给所述用户装置,且将基于所更改的偏移确定的第二组副载波指派给所述用户装置。
29.如权利要求28所述的设备,其中所述第一组副载波和第二组副载波受限于部分系统带宽。
30.如权利要求28所述的设备,其中所述第一组副载波和第二组副载波包括基于分配给所述用户装置的且从多个所支持的副载波组大小中选择的副载波组大小所确定的相等数量的副载波。
31.如权利要求28所述的设备,其中所述处理器进一步经配置以:接收所述用户装置在所述第一组副载波上发送的至少一个本地化的频分多址LFDMA符号,以及接收所述用户装置在所述第二组副载波上发送的至少一个额外本地化的频分多址LFDMA符号。
32.如权利要求28所述的设备,其中所述处理器进一步经配置以:接收所述用户装置在所述第一组副载波上发送的至少一个交织频分多址IFDMA符号,以及接收所述用户装置在所述第二组副载波上发送的至少一个额外交织频分多址IFDMA符号。
33.如权利要求15所述的方法,进一步包括:将基于所述偏移确定的第一组副载波指派给所述用户装置;以及将基于所更改的偏移确定的第二组副载波指派给所述用户装置。
34.如权利要求33所述的方法,其中所述第一组副载波和第二组副载波受限于部分系统带宽。
35.如权利要求33所述的方法,其中所述第一组副载波和第二组副载波包括基于分配给所述用户装置的且从多个所支持的副载波组大小中选择的副载波组大小所确定的相等数量的副载波。
36.如权利要求33所述的方法,进一步包括:接收所述用户装置在所述第一组副载波上发送的至少一个本地化的频分多址LFDMA符号;以及接收所述用户装置在所述第二组副载波上发送的至少一个额外本地化的频分多址LFDMA符号。
37.如权利要求33所述的方法,进一步包括:接收所述用户装置在所述第一组副载波上发送的至少一个交织频分多址IFDMA符号;以及接收所述用户装置在所述第二组副载波上发送的至少一个额外交织频分多址IFDMA符号。
38.如权利要求21所述的设备,进一步包括:用于将基于所述偏移确定的第一组副载波指派给所述用户装置的构件;以及用于将基于所更改的偏移确定的第二组副载波指派给所述用户装置的构件。
39.如权利要求38所述的设备,其中所述第一组副载波和第二组副载波受限于部分系统带宽。
40.如权利要求38所述的设备,其中所述第一组副载波和第二组副载波包括基于分配给所述用户装置的且从多个所支持的副载波组大小中选择的副载波组大小所确定的相等数量的副载波。
41.如权利要求38所述的设备,进一步包括:用于接收所述用户装置在所述第一组副载波上发送的至少一个本地化的频分多址LFDMA符号的构件;以及用于接收所述用户装置在所述第二组副载波上发送的至少一个额外本地化的频分多址LFDMA符号的构件。
42.如权利要求38所述的设备,进一步包括:用于接收所述用户装置在所述第一组副载波上发送的至少一个交织频分多址IFDMA符号的构件;以及用于接收所述用户装置在所述第二组副载波上发送的至少一个额外交织频分多址IFDMA符号的构件。
43.一种用于无线通信的设备,其包括:
存储器,其经配置以:
接收用于用户装置的偏移的指派,所述偏移基于预定模式而更改且是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
基于所述指派发送至少一个单载波频分多址FDMA符号。
44.如权利要求43所述的设备,其中用于所述用户装置的所述偏移周期性地更改。
45.如权利要求43所述的设备,其中用于所述用户装置的所述偏移在所述用户装置传输每一单载波频分多址FDMA符号时更改。
46.如权利要求43所述的设备,其中用于所述用户装置的所述偏移在所述用户装置传输单载波频分多址FDMA符号的块时更改。
47.如权利要求43所述的设备,其中所述处理器进一步经配置以:基于用于所述用户装置的所述偏移确定指派给所述用户装置的第一组副载波,且基于用于所述用户装置的所更改的偏移确定指派给所述用户装置的第二组副载波。
48.如权利要求47所述的设备,其中所述第一组副载波和第二组副载波受限于部分系统带宽。
49.如权利要求47所述的设备,其中所述第一组副载波和第二组副载波包括基于分配给所述用户装置的且从多个所支持的副载波组大小中选择的副载波组大小所确定的相等数量的副载波。
50.如权利要求47所述的设备,其中所述处理器进一步经配置以:在所述第一组副载波上发送至少一个本地化的频分多址LFDMA符号,以及在所述第二组副载波上发送至少一个额外本地化的频分多址LFDMA符号。
51.如权利要求47所述的设备,其中所述处理器进一步经配置以:在所述第一组副载波上发送至少一个交织频分多址IFDMA符号,以及在所述第二组副载波上发送至少一个额外交织频分多址IFDMA符号。
52.一种用于无线通信的方法,其包括:
接收用于用户装置的偏移的指派,所述偏移基于预定模式而更改且是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
基于所述指派发送至少一个单载波频分多址FDMA符号。
53.如权利要求52所述的方法,其中用于所述用户装置的所述偏移周期性地更改。
54.如权利要求52所述的方法,其中用于所述用户装置的所述偏移在所述用户装置传输每一单载波频分多址FDMA符号时更改。
55.如权利要求52所述的方法,其中用于所述用户装置的所述偏移在所述用户装置传输单载波频分多址FDMA符号的块时更改。
56.如权利要求52所述的方法,进一步包括:基于用于所述用户装置的所述偏移确定指派给所述用户装置的第一组副载波;以及基于用于所述用户装置的所更改的偏移确定指派给所述用户装置的第二组副载波。
57.如权利要求56所述的方法,其中所述第一组副载波和第二组副载波受限于部分系统带宽。
58.如权利要求56所述的方法,其中所述第一组副载波和第二组副载波包括基于分配给所述用户装置的且从多个所支持的副载波组大小中选择的副载波组大小所确定的相等数量的副载波。
59.如权利要求56所述的方法,其中所述发送至少一个单载波频分多址FDMA符号包括在所述第一组副载波上发送至少一个本地化的频分多址LFDMA符号,以及在所述第二组副载波上发送至少一个额外本地化的频分多址LFDMA符号。
60.如权利要求56所述的方法,其中所述发送至少一个单载波频分多址FDMA符号包括在所述第一组副载波上发送至少一个交织频分多址IFDMA符号,以及在所述第二组副载波上发送至少一个额外交织频分多址IFDMA符号。
61.一种用于无线通信的设备,其包括:
用于接收用于用户装置的偏移的指派的构件,所述偏移基于预定模式而更改且是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
用于基于所述指派发送至少一个单载波频分多址FDMA符号的构件。
62.如权利要求61所述的设备,其中用于所述用户装置的所述偏移周期性地更改。
63.如权利要求61所述的设备,其中用于所述用户装置的所述偏移在所述用户装置传输每一单载波频分多址FDMA符号时更改。
64.如权利要求61所述的设备,其中用于所述用户装置的所述偏移在所述用户装置传输单载波频分多址FDMA符号的块时更改。
65.如权利要求61所述的设备,进一步包括:用于基于用于所述用户装置的所述偏移确定指派给所述用户装置的第一组副载波的构件;以及用于基于用于所述用户装置的所更改的偏移确定指派给所述用户装置的第二组副载波的构件。
66.如权利要求65所述的设备,其中所述第一组副载波和第二组副载波受限于部分系统带宽。
67.如权利要求65所述的设备,其中所述第一组副载波和第二组副载波包括基于分配给所述用户装置的且从多个所支持的副载波组大小中选择的副载波组大小所确定的相等数量的副载波。
68.如权利要求65所述的设备,其中所述用于发送至少一个单载波频分多址FDMA符号的构件包括用于在所述第一组副载波上发送至少一个本地化的频分多址LFDMA符号的构件,以及用于在所述第二组副载波上发送至少一个额外本地化的频分多址LFDMA符号的构件。
69.如权利要求65所述的设备,其中所述用于发送至少一个单载波频分多址FDMA符号的构件包括用于在所述第一组副载波上发送至少一个交织频分多址IFDMA符号的构件,以及用于在所述第二组副载波上发送至少一个额外交织频分多址IFDMA符号的构件。
70.一种非暂态计算机可读媒体,其上存储有用于如下操作的计算机可执行指令:
接收用于用户装置的偏移的指派,所述偏移基于预定模式而更改且是可用于单载波频分多址FDMA符号传输的多个偏移中的一者,所述多个偏移中的每一者与可用于单载波频分多址FDMA符号的传输的多个副载波中的不同起始副载波相关联;及
基于所述指派发送至少一个单载波频分多址FDMA符号。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109075812A (zh) * | 2016-04-13 | 2018-12-21 | 高通股份有限公司 | Ofdma无线网络中的跳频 |
Families Citing this family (85)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
US7701844B2 (en) | 2005-02-09 | 2010-04-20 | Interdigital Technology Corporation | Method and apparatus for recognizing radio link failures associated with HSUPA and HSDPA channels |
US9246560B2 (en) | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
US9154211B2 (en) | 2005-03-11 | 2015-10-06 | Qualcomm Incorporated | Systems and methods for beamforming feedback in multi antenna communication systems |
US8446892B2 (en) | 2005-03-16 | 2013-05-21 | Qualcomm Incorporated | Channel structures for a quasi-orthogonal multiple-access communication system |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9461859B2 (en) | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9143305B2 (en) | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
US9036538B2 (en) | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
US8611284B2 (en) | 2005-05-31 | 2013-12-17 | Qualcomm Incorporated | Use of supplemental assignments to decrement resources |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8565161B2 (en) * | 2005-05-31 | 2013-10-22 | Nokia Corporation | Adaptive frequency reuse scheme |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
ES2351703T5 (es) * | 2005-06-15 | 2018-01-30 | Huawei Technologies Co., Ltd. | Método y sistema para la asignación de recursos de comunicaciones |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8599945B2 (en) | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US8670493B2 (en) | 2005-06-22 | 2014-03-11 | Eices Research, Inc. | Systems and/or methods of increased privacy wireless communications |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
WO2007019567A2 (en) * | 2005-08-09 | 2007-02-15 | Interdigital Technology Corporation | Method and apparatus for inter-node-b macro diversity in a sc-fdma system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
KR101341318B1 (ko) * | 2005-08-24 | 2013-12-12 | 인터디지탈 테크날러지 코포레이션 | 업링크 용량을 증가시키기 위해 채널 품질 표시자 피드백 주기를 조정하는 방법 및 장치 |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
WO2007075133A1 (en) * | 2005-12-29 | 2007-07-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for frequency hopping in wireless communication systems with carriers of varying bandwidth |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
EP1987622B1 (en) * | 2006-02-21 | 2012-04-11 | QUALCOMM Incorporated | Method and apparatus for supporting ofdm and cdma schemes |
US8077595B2 (en) | 2006-02-21 | 2011-12-13 | Qualcomm Incorporated | Flexible time-frequency multiplexing structure for wireless communication |
US8689025B2 (en) * | 2006-02-21 | 2014-04-01 | Qualcomm Incorporated | Reduced terminal power consumption via use of active hold state |
US9461736B2 (en) * | 2006-02-21 | 2016-10-04 | Qualcomm Incorporated | Method and apparatus for sub-slot packets in wireless communication |
EP1863215B1 (en) * | 2006-05-29 | 2019-01-30 | Samsung Electronics Co., Ltd. | Method and apparatus for allocating frequency resources in a wireless communication system supporting frequency division multiplexing |
US7929496B2 (en) * | 2006-10-26 | 2011-04-19 | Qualcomm Incorporated | Method and apparatus for implementing composite channel trees for resource assignments |
US9281917B2 (en) * | 2007-01-03 | 2016-03-08 | Nokia Technologies Oy | Shared control channel structure |
CN108712237B (zh) * | 2007-01-18 | 2021-11-05 | 松下电器(美国)知识产权公司 | 基站装置、终端装置、发送方法及通信方法 |
WO2008097037A1 (en) * | 2007-02-07 | 2008-08-14 | Samsung Electronics Co., Ltd. | Method and apparatus for multiplexing frequency hopping in a communication system |
WO2008103091A1 (en) * | 2007-02-23 | 2008-08-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency hopping scheme for ofdma system |
US8718030B2 (en) * | 2007-03-26 | 2014-05-06 | Qualcomm Incorporated | Methods and apparatus for performing channel tree operations |
DK1990926T3 (da) | 2007-05-07 | 2013-11-11 | Nokia Siemens Networks Oy | Styrekanaler i kommunikationsnetværkssystemer |
US8265029B2 (en) | 2007-06-15 | 2012-09-11 | Futurewei Technologies, Inc. | Method and apparatus for assigning resources in a wireless system |
CN101578788A (zh) * | 2007-06-15 | 2009-11-11 | 华为技术有限公司 | 用于在无线系统中分配资源的方法和装置 |
US8130780B2 (en) | 2007-06-15 | 2012-03-06 | Futurewei Technologies, Inc. | Method and apparatus for assigning resources in a wireless system with multiple regions |
US8614985B2 (en) | 2007-06-15 | 2013-12-24 | Futurewei Technologies, Inc. | Method and apparatus for sharing a group resource in a wireless SDMA system |
US9544911B2 (en) * | 2007-08-10 | 2017-01-10 | Futurewei Technologies, Inc. | System and method for assigning communications resources in a wireless communications system |
US8300673B2 (en) * | 2007-08-24 | 2012-10-30 | Motorola Solutions, Inc. | System, method and apparatus for managing communication in a public safety communication network |
JP4606448B2 (ja) * | 2007-10-01 | 2011-01-05 | 株式会社エヌ・ティ・ティ・ドコモ | ユーザ装置、送信方法及び通信システム |
CN101843143A (zh) * | 2007-10-31 | 2010-09-22 | 三菱电机株式会社 | 移动通信系统、基站、移动站、以及基站设置方法 |
US8254942B2 (en) | 2007-11-27 | 2012-08-28 | Futurewei Technologies, Inc. | System and method for resource allocation in a wireless communications system |
US8379688B2 (en) | 2008-02-04 | 2013-02-19 | Intel Corporation | Method and apparatus adapted for localized hopping OFDMA and power efficient OFDMA multiplexing |
US8259662B2 (en) | 2008-02-19 | 2012-09-04 | Futurewei Technologies | Method and apparatus for assigning persistent resources dynamically in a wireless communication system |
EP2136520A1 (en) * | 2008-06-20 | 2009-12-23 | Nokia Siemens Networks Oy | Method and device for processing data and communication system comprising such device |
US8913551B2 (en) | 2008-06-24 | 2014-12-16 | Mitsubishi Electric Research Laboratories, Inc. | Antenna selection with frequency-hopped sounding reference signals |
CN101854192B (zh) * | 2009-03-31 | 2013-06-05 | 中兴通讯股份有限公司 | 一种支持多用户复用单时隙的跳频方法及系统 |
WO2010122432A1 (en) * | 2009-04-21 | 2010-10-28 | Marvell World Trade Ltd | Multi-point opportunistic beamforming with selective beam attenuation |
US9973362B2 (en) * | 2014-03-07 | 2018-05-15 | Huawei Technologies Co., Ltd. | Common broadcast channel low PAPR signaling in massive MIMO systems |
US9769821B2 (en) * | 2014-05-06 | 2017-09-19 | Cisco Technology, Inc. | Data rate hopping scheduling |
US10270625B2 (en) | 2016-12-19 | 2019-04-23 | Futurewei Technologies, Inc. | Hardware virtualization for mean and variance estimations of QAM symbols |
US10736074B2 (en) | 2017-07-31 | 2020-08-04 | Qualcomm Incorporated | Systems and methods to facilitate location determination by beamforming of a positioning reference signal |
CN110662292B (zh) * | 2018-06-29 | 2023-04-07 | 慧与发展有限责任合伙企业 | 传输多播帧 |
CA3119325C (en) | 2018-11-27 | 2023-07-04 | XCOM Labs, Inc. | Non-coherent cooperative multiple-input multiple-output communications |
US11233559B2 (en) | 2018-12-07 | 2022-01-25 | Qualcomm Incorporated | Frequency offset adjustment for beam switching in wireless communications |
US11777764B2 (en) | 2019-03-28 | 2023-10-03 | Qualcomm Incorporated | Sounding reference signal waveform design for wireless communications |
US11239967B2 (en) | 2019-05-02 | 2022-02-01 | Qualcomm Incorporated | Patterns for reference signals used for positioning in a wireless communications system |
US11082183B2 (en) | 2019-09-16 | 2021-08-03 | Qualcomm Incorporated | Comb shift design |
US11411779B2 (en) | 2020-03-31 | 2022-08-09 | XCOM Labs, Inc. | Reference signal channel estimation |
CN115699605A (zh) | 2020-05-26 | 2023-02-03 | 艾斯康实验室公司 | 干扰感知波束成形 |
KR20230091910A (ko) | 2020-10-19 | 2023-06-23 | 엑스콤 랩스 인코퍼레이티드 | 무선 통신 시스템에서의 참조 신호 |
WO2022093988A1 (en) | 2020-10-30 | 2022-05-05 | XCOM Labs, Inc. | Clustering and/or rate selection in multiple-input multiple-output communication systems |
KR102309023B1 (ko) * | 2020-11-27 | 2021-10-06 | 주식회사 비욘드아이 | 이동통신 네트워크 환경에서 셀 할당 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5887023A (en) * | 1995-11-29 | 1999-03-23 | Nec Corporation | Method and apparatus for a frequency hopping-spread spectrum communication system |
CN1267152A (zh) * | 1999-03-11 | 2000-09-20 | 朗迅科技公司 | 基于正交频分复用技术的扩频多址 |
US6584140B1 (en) * | 1999-01-22 | 2003-06-24 | Systems Information And Electronic Systems Integration Inc. | Spectrum efficient fast frequency-hopped modem with coherent demodulation |
Family Cites Families (922)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4393276A (en) | 1981-03-19 | 1983-07-12 | Bell Telephone Laboratories, Incorporated | Fourier masking analog signal secure communication system |
FR2527871B1 (fr) | 1982-05-27 | 1986-04-11 | Thomson Csf | Systeme de radiocommunications, a sauts de frequence |
SU1320883A1 (ru) | 1985-02-06 | 1987-06-30 | Предприятие П/Я Р-6707 | Устройство дл восстановлени временных интервалов цифровых сигналов,принимаемых из канала с ограниченной полосой пропускани |
FR2584884B1 (fr) | 1985-07-09 | 1987-10-09 | Trt Telecom Radio Electr | Procede et dispositif de recherche de canal libre pour un systeme de radio mobile |
JPS6216639A (ja) | 1985-07-16 | 1987-01-24 | Kokusai Denshin Denwa Co Ltd <Kdd> | 秘話音声信号送出装置 |
GB2180127B (en) | 1985-09-04 | 1989-08-23 | Philips Electronic Associated | Method of data communication |
JPS6290045A (ja) | 1985-10-16 | 1987-04-24 | Kokusai Denshin Denwa Co Ltd <Kdd> | Fdma通信方式における周波数割当方式 |
US5008900A (en) | 1989-08-14 | 1991-04-16 | International Mobile Machines Corporation | Subscriber unit for wireless digital subscriber communication system |
FR2652452B1 (fr) | 1989-09-26 | 1992-03-20 | Europ Agence Spatiale | Dispositif d'alimentation d'une antenne a faisceaux multiples. |
JPH04111544A (ja) | 1990-08-31 | 1992-04-13 | Nippon Telegr & Teleph Corp <Ntt> | 無線チャネル割当方法 |
JP2807771B2 (ja) | 1991-03-28 | 1998-10-08 | キヤノン株式会社 | 無線電話システム及び無線通信装置 |
US5257399A (en) | 1990-11-28 | 1993-10-26 | Telefonaktiebolaget L M Ericsson | Multiple access handling in a cellular communications system |
US5253270A (en) * | 1991-07-08 | 1993-10-12 | Hal Communications | Apparatus useful in radio communication of digital data using minimal bandwidth |
US5455839A (en) | 1991-12-27 | 1995-10-03 | Motorola, Inc. | Device and method for precoding |
JP2904986B2 (ja) | 1992-01-31 | 1999-06-14 | 日本放送協会 | 直交周波数分割多重ディジタル信号送信装置および受信装置 |
US5384810A (en) * | 1992-02-05 | 1995-01-24 | At&T Bell Laboratories | Modulo decoder |
US5363408A (en) | 1992-03-24 | 1994-11-08 | General Instrument Corporation | Mode selective quadrature amplitude modulation communication system |
US5282222A (en) * | 1992-03-31 | 1994-01-25 | Michel Fattouche | Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum |
GB9209027D0 (en) | 1992-04-25 | 1992-06-17 | British Aerospace | Multi purpose digital signal regenerative processing apparatus |
US5268694A (en) | 1992-07-06 | 1993-12-07 | Motorola, Inc. | Communication system employing spectrum reuse on a spherical surface |
FR2693861A1 (fr) | 1992-07-16 | 1994-01-21 | Philips Electronique Lab | Récepteur de signaux à répartition multiplexée de fréquences orthogonales muni d'un dispositif de synchronisation de fréquences. |
US5404355A (en) | 1992-10-05 | 1995-04-04 | Ericsson Ge Mobile Communications, Inc. | Method for transmitting broadcast information in a digital control channel |
US5604744A (en) | 1992-10-05 | 1997-02-18 | Telefonaktiebolaget Lm Ericsson | Digital control channels having logical channels for multiple access radiocommunication |
US5768276A (en) | 1992-10-05 | 1998-06-16 | Telefonaktiebolaget Lm Ericsson | Digital control channels having logical channels supporting broadcast SMS |
US5603081A (en) | 1993-11-01 | 1997-02-11 | Telefonaktiebolaget Lm Ericsson | Method for communicating in a wireless communication system |
US5384410A (en) | 1993-03-24 | 1995-01-24 | The Du Pont Merck Pharmaceutical Company | Removal of boronic acid protecting groups by transesterification |
JP2942913B2 (ja) | 1993-06-10 | 1999-08-30 | ケイディディ株式会社 | 相手認証/暗号鍵配送方式 |
SG48219A1 (en) | 1993-06-18 | 1998-04-17 | Qualcomm Inc | Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver |
US5870393A (en) * | 1995-01-20 | 1999-02-09 | Hitachi, Ltd. | Spread spectrum communication system and transmission power control method therefor |
JPH0746248A (ja) | 1993-07-30 | 1995-02-14 | Toshiba Corp | 無線通信システム |
US6501810B1 (en) | 1998-10-13 | 2002-12-31 | Agere Systems Inc. | Fast frame synchronization |
US5594738A (en) * | 1993-10-18 | 1997-01-14 | Motorola, Inc. | Time slot allocation method |
ZA948134B (en) | 1993-10-28 | 1995-06-13 | Quaqlcomm Inc | Method and apparatus for performing handoff between sectors of a common base station |
US5410538A (en) | 1993-11-09 | 1995-04-25 | At&T Corp. | Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system |
DE69434353T2 (de) | 1993-12-22 | 2006-03-09 | Koninklijke Philips Electronics N.V. | Mehrträger-Frequenzsprungkommunikationssystem |
US5465253A (en) | 1994-01-04 | 1995-11-07 | Motorola, Inc. | Method and apparatus for demand-assigned reduced-rate out-of-band signaling channel |
US5469471A (en) | 1994-02-01 | 1995-11-21 | Qualcomm Incorporated | Method and apparatus for providing a communication link quality indication |
GB9402942D0 (en) | 1994-02-16 | 1994-04-06 | Northern Telecom Ltd | Base station antenna arrangement |
US5513379A (en) | 1994-05-04 | 1996-04-30 | At&T Corp. | Apparatus and method for dynamic resource allocation in wireless communication networks utilizing ordered borrowing |
US5603096A (en) | 1994-07-11 | 1997-02-11 | Qualcomm Incorporated | Reverse link, closed loop power control in a code division multiple access system |
US5583869A (en) | 1994-09-30 | 1996-12-10 | Motorola, Inc. | Method for dynamically allocating wireless communication resources |
PL178218B1 (pl) | 1994-10-27 | 2000-03-31 | Ibm | Sposób i urządzenie do bezpiecznej identyfikacji ruchomego użytkownika w sieci komunikacyjnej |
JP3437291B2 (ja) | 1994-11-14 | 2003-08-18 | キヤノン株式会社 | 再生装置および再生方法 |
US6169910B1 (en) * | 1994-12-30 | 2001-01-02 | Focused Energy Holding Inc. | Focused narrow beam communication system |
US5684491A (en) | 1995-01-27 | 1997-11-04 | Hazeltine Corporation | High gain antenna systems for cellular use |
JPH08288927A (ja) | 1995-04-17 | 1996-11-01 | Oki Electric Ind Co Ltd | スペクトル拡散通信方式及びスペクトル拡散通信装置 |
EP0740431B1 (en) | 1995-04-28 | 2005-09-14 | Alcatel | Method for TDMA management, central station, terminal station and network system to perform this method |
US5612978A (en) * | 1995-05-30 | 1997-03-18 | Motorola, Inc. | Method and apparatus for real-time adaptive interference cancellation in dynamic environments |
US6215983B1 (en) | 1995-06-02 | 2001-04-10 | Trw Inc. | Method and apparatus for complex phase equalization for use in a communication system |
US6535666B1 (en) * | 1995-06-02 | 2003-03-18 | Trw Inc. | Method and apparatus for separating signals transmitted over a waveguide |
US6018317A (en) | 1995-06-02 | 2000-01-25 | Trw Inc. | Cochannel signal processing system |
US5726978A (en) | 1995-06-22 | 1998-03-10 | Telefonaktiebolaget L M Ericsson Publ. | Adaptive channel allocation in a frequency division multiplexed system |
FI99252C (fi) | 1995-07-03 | 1997-12-29 | Nokia Mobile Phones Ltd | Yhdistetty radiosignaalin modulointi- ja monikäyttömenetelmä |
US6154484A (en) | 1995-09-06 | 2000-11-28 | Solana Technology Development Corporation | Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing |
US5815488A (en) | 1995-09-28 | 1998-09-29 | Cable Television Laboratories, Inc. | Multiple user access method using OFDM |
JPH09139725A (ja) | 1995-11-16 | 1997-05-27 | Matsushita Electric Ind Co Ltd | 多重通信装置 |
EP0774850B1 (en) | 1995-11-16 | 2004-10-27 | Ntt Mobile Communications Network Inc. | Digital signal detecting method and detector |
JP2812318B2 (ja) | 1995-11-29 | 1998-10-22 | 日本電気株式会社 | スペクトラム拡散通信方法及び装置 |
KR0150275B1 (ko) | 1995-12-22 | 1998-11-02 | 양승택 | 멀티캐스트 통신의 폭주 제어방법 |
EP0786889B1 (en) | 1996-02-02 | 2002-04-17 | Deutsche Thomson-Brandt Gmbh | Method for the reception of multicarrier signals and related apparatus |
US6088592A (en) | 1996-03-25 | 2000-07-11 | Airnet Communications Corporation | Wireless system plan using in band-translators with diversity backhaul to enable efficient depolyment of high capacity base transceiver systems |
US6134215A (en) | 1996-04-02 | 2000-10-17 | Qualcomm Incorpoated | Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel |
US5822368A (en) | 1996-04-04 | 1998-10-13 | Lucent Technologies Inc. | Developing a channel impulse response by using distortion |
JPH09281508A (ja) | 1996-04-12 | 1997-10-31 | Semiconductor Energy Lab Co Ltd | 液晶表示装置およびその作製方法 |
GB9609148D0 (en) | 1996-05-01 | 1996-07-03 | Plessey Telecomm | Multi-party communication |
US5790537A (en) | 1996-05-15 | 1998-08-04 | Mcgill University | Interference suppression in DS-CDMA systems |
DE69705356T2 (de) | 1996-05-17 | 2002-05-02 | Motorola Ltd | Verfahren und Vorrichtung zur Gewichtung eines Uebertragungsweges |
US5926470A (en) | 1996-05-22 | 1999-07-20 | Qualcomm Incorporated | Method and apparatus for providing diversity in hard handoff for a CDMA system |
GB9611146D0 (en) | 1996-05-29 | 1996-07-31 | Philips Electronics Nv | Method of, and system for, transmitting messages |
US5732113A (en) * | 1996-06-20 | 1998-03-24 | Stanford University | Timing and frequency synchronization of OFDM signals |
KR980007105A (ko) | 1996-06-28 | 1998-03-30 | 김광호 | 이동국 송신전력 제어방법 |
US6909797B2 (en) | 1996-07-10 | 2005-06-21 | R2 Technology, Inc. | Density nodule detection in 3-D digital images |
US6058309A (en) | 1996-08-09 | 2000-05-02 | Nortel Networks Corporation | Network directed system selection for cellular and PCS enhanced roaming |
US6141317A (en) | 1996-08-22 | 2000-10-31 | Tellabs Operations, Inc. | Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system |
US6233456B1 (en) | 1996-09-27 | 2001-05-15 | Qualcomm Inc. | Method and apparatus for adjacent coverage area handoff in communication systems |
JP3444114B2 (ja) | 1996-11-22 | 2003-09-08 | ソニー株式会社 | 通信方法、基地局及び端末装置 |
US5956642A (en) | 1996-11-25 | 1999-09-21 | Telefonaktiebolaget L M Ericsson | Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
US6061337A (en) | 1996-12-02 | 2000-05-09 | Lucent Technologies Inc. | System and method for CDMA handoff using telemetry to determine the need for handoff and to select the destination cell site |
EP0848563A3 (en) | 1996-12-11 | 2000-01-05 | Texas Instruments Incorporated | Improvements in or relating to telecommunication systems |
KR100221336B1 (ko) | 1996-12-28 | 1999-09-15 | 전주범 | 직교 주파수 분할 다중화 수신 시스템의 프레임 동기 장치 및 그 방법 |
US5953325A (en) | 1997-01-02 | 1999-09-14 | Telefonaktiebolaget L M Ericsson (Publ) | Forward link transmission mode for CDMA cellular communications system using steerable and distributed antennas |
US6232918B1 (en) | 1997-01-08 | 2001-05-15 | Us Wireless Corporation | Antenna array calibration in wireless communication systems |
US6173007B1 (en) | 1997-01-15 | 2001-01-09 | Qualcomm Inc. | High-data-rate supplemental channel for CDMA telecommunications system |
US5933421A (en) | 1997-02-06 | 1999-08-03 | At&T Wireless Services Inc. | Method for frequency division duplex communications |
US5920571A (en) | 1997-02-07 | 1999-07-06 | Lucent Technologies Inc. | Frequency channel and time slot assignments in broadband access networks |
US6335922B1 (en) * | 1997-02-11 | 2002-01-01 | Qualcomm Incorporated | Method and apparatus for forward link rate scheduling |
CN1219306A (zh) | 1997-02-21 | 1999-06-09 | 摩托罗拉公司 | 无线通信系统中分配频谱资源的方法和装置 |
US6359923B1 (en) | 1997-12-18 | 2002-03-19 | At&T Wireless Services, Inc. | Highly bandwidth efficient communications |
US6584144B2 (en) * | 1997-02-24 | 2003-06-24 | At&T Wireless Services, Inc. | Vertical adaptive antenna array for a discrete multitone spread spectrum communications system |
US5838268A (en) | 1997-03-14 | 1998-11-17 | Orckit Communications Ltd. | Apparatus and methods for modulation and demodulation of data |
US5974310A (en) | 1997-03-20 | 1999-10-26 | Omnipoint Corporation | Communication control for a user of a central communication center |
FI104610B (fi) | 1997-03-27 | 2000-02-29 | Nokia Networks Oy | Ohjauskanavan allokointi pakettiradioverkossa |
US6175550B1 (en) * | 1997-04-01 | 2001-01-16 | Lucent Technologies, Inc. | Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof |
KR100242421B1 (ko) | 1997-04-14 | 2000-02-01 | 윤종용 | 디지털 이동 통신시스템의 파이롯트 피엔 오프셋 할당 방법 |
FI106605B (fi) | 1997-04-16 | 2001-02-28 | Nokia Networks Oy | Autentikointimenetelmä |
US6076114A (en) | 1997-04-18 | 2000-06-13 | International Business Machines Corporation | Methods, systems and computer program products for reliable data transmission over communications networks |
FI105136B (fi) | 1997-04-21 | 2000-06-15 | Nokia Mobile Phones Ltd | Yleinen pakettiradiopalvelu |
FI104939B (fi) | 1997-04-23 | 2000-04-28 | Nokia Networks Oy | Merkinannon toteutus tietoliikenneverkossa |
DE69841773D1 (de) | 1997-04-24 | 2010-09-02 | Nippon Telegraph & Telephone | Mobiles kommunikationsverfahren und anordnung |
KR100241894B1 (ko) | 1997-05-07 | 2000-02-01 | 윤종용 | 개인통신 시스템의 코드분할 접속방식 기지국 시스템에서 소프트웨어 관리방법 |
US6075814A (en) | 1997-05-09 | 2000-06-13 | Broadcom Homenetworking, Inc. | Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem |
JP2879030B2 (ja) | 1997-05-16 | 1999-04-05 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm送信装置及び受信装置とofdm送信方法及び受信方法 |
FI105063B (fi) | 1997-05-16 | 2000-05-31 | Nokia Networks Oy | Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä |
US6374115B1 (en) | 1997-05-28 | 2002-04-16 | Transcrypt International/E.F. Johnson | Method and apparatus for trunked radio repeater communications with backwards compatibility |
DE69838063T2 (de) | 1997-05-30 | 2008-03-13 | Qualcomm Inc., San Diego | Verfahren und Einrichtung zum indirekten Funkruf eines schnurlosen Endgerätes mit weniger codierten Funkrufandeutung. |
SE9702271D0 (sv) | 1997-06-13 | 1997-06-13 | Ericsson Telefon Ab L M | Återanvändning av fysisk kontrollkanal i ett distribuerat cellulärt radiokommunikationssystem |
US6052364A (en) | 1997-06-13 | 2000-04-18 | Comsat Corporation | CDMA system architecture for satcom terminals |
US6151296A (en) | 1997-06-19 | 2000-11-21 | Qualcomm Incorporated | Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals |
US5867478A (en) * | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
US6240129B1 (en) | 1997-07-10 | 2001-05-29 | Alcatel | Method and windowing unit to reduce leakage, fourier transformer and DMT modem wherein the unit is used |
US6038150A (en) | 1997-07-23 | 2000-03-14 | Yee; Hsian-Pei | Transistorized rectifier for a multiple output converter |
US6038263A (en) * | 1997-07-31 | 2000-03-14 | Motorola, Inc. | Method and apparatus for transmitting signals in a communication system |
US6307849B1 (en) | 1997-09-08 | 2001-10-23 | Qualcomm Incorporated | Method and system for changing forward traffic channel power allocation during soft handoff |
KR100365346B1 (ko) | 1997-09-09 | 2003-04-11 | 삼성전자 주식회사 | 이동통신시스템의쿼시직교부호생성및쿼시직교부호를이용한대역확산장치및방법 |
US6038450A (en) * | 1997-09-12 | 2000-03-14 | Lucent Technologies, Inc. | Soft handover system for a multiple sub-carrier communication system and method thereof |
US6377809B1 (en) | 1997-09-16 | 2002-04-23 | Qualcomm Incorporated | Channel structure for communication systems |
US6577739B1 (en) | 1997-09-19 | 2003-06-10 | University Of Iowa Research Foundation | Apparatus and methods for proportional audio compression and frequency shifting |
US6058105A (en) | 1997-09-26 | 2000-05-02 | Lucent Technologies Inc. | Multiple antenna communication system and method thereof |
US6075797A (en) | 1997-10-17 | 2000-06-13 | 3Com Corporation | Method and system for detecting mobility of a wireless-capable modem to minimize data transfer rate renegotiations |
US7184426B2 (en) | 2002-12-12 | 2007-02-27 | Qualcomm, Incorporated | Method and apparatus for burst pilot for a time division multiplex system |
KR100369602B1 (ko) | 1997-11-03 | 2003-04-11 | 삼성전자 주식회사 | 부호분할다중접속방식이동통신시스템의전력제어비트삽입방법 |
US5995992A (en) | 1997-11-17 | 1999-11-30 | Bull Hn Information Systems Inc. | Conditional truncation indicator control for a decimal numeric processor employing result truncation |
US6108323A (en) | 1997-11-26 | 2000-08-22 | Nokia Mobile Phones Limited | Method and system for operating a CDMA cellular system having beamforming antennas |
US5971484A (en) * | 1997-12-03 | 1999-10-26 | Steelcase Development Inc. | Adjustable armrest for chairs |
US6067315A (en) | 1997-12-04 | 2000-05-23 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for coherently-averaged power estimation |
US6563806B1 (en) | 1997-12-12 | 2003-05-13 | Hitachi, Ltd. | Base station for multi-carrier TDMA mobile communication system and method for assigning communication channels |
US6222832B1 (en) | 1998-06-01 | 2001-04-24 | Tantivy Communications, Inc. | Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system |
US6393008B1 (en) | 1997-12-23 | 2002-05-21 | Nokia Movile Phones Ltd. | Control structures for contention-based packet data services in wideband CDMA |
JPH11191756A (ja) | 1997-12-25 | 1999-07-13 | Nec Corp | Phs(登録商標)によるデータ通信装置及び方法 |
JPH11196109A (ja) | 1997-12-26 | 1999-07-21 | Canon Inc | 無線情報通信システム |
DE19800653A1 (de) | 1998-01-09 | 1999-07-15 | Albert M Huber | Vorrichtung zum Abtrennen von Partikeln, oder von Partikeln und Gasen, oder von Fluiden anderer Dichte aus Flüssigkeiten, oder Suspensionen, oder Emulsionen, die ein feststehendes Gehäuse besitzt und mit Hilfe der Zentrifugalkraft separiert und auch diese obengenannten Medien durch diese Vorrichtung und eventuell nachgeschaltete Mittel fördert |
DE19800953C1 (de) | 1998-01-13 | 1999-07-29 | Siemens Ag | Verfahren und Funk-Kommunikationssystem zur Zuteilung von Funkressourcen einer Funkschnittstelle |
US6175650B1 (en) * | 1998-01-26 | 2001-01-16 | Xerox Corporation | Adaptive quantization compatible with the JPEG baseline sequential mode |
US5955992A (en) | 1998-02-12 | 1999-09-21 | Shattil; Steve J. | Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter |
CA2283290C (en) | 1998-02-14 | 2003-04-01 | Samsung Electronics Co., Ltd. | Data communication device and method for mobile communication system with dedicated control channel |
JP3589851B2 (ja) | 1998-02-20 | 2004-11-17 | 株式会社日立製作所 | パケット通信システム及びパケット通信装置 |
JP3199020B2 (ja) | 1998-02-27 | 2001-08-13 | 日本電気株式会社 | 音声音楽信号の符号化装置および復号装置 |
DE59907450D1 (de) | 1998-02-27 | 2003-11-27 | Siemens Ag | Telekommunikationssysteme mit drahtloser, auf code- und zeitmultiplex basierender telekommunikation |
WO1999044383A1 (de) | 1998-02-27 | 1999-09-02 | Siemens Aktiengesellschaft | Telekommunikationssysteme mit drahtloser, auf code- und zeitmultiplex basierender telekommunikation zwischen mobilen und/oder stationären sende-/empfangsgeräten |
WO1999048227A1 (en) | 1998-03-14 | 1999-09-23 | Samsung Electronics Co., Ltd. | Device and method for exchanging frame messages of different lengths in cdma communication system |
KR100357621B1 (ko) | 1998-03-23 | 2002-10-25 | 삼성전자 주식회사 | 부호분할 다중접속 통신시스템에서 역방향 링크의 공통채널에 대한 전력 제어 장치 및 방법 |
CA2722546C (en) | 1998-04-03 | 2013-03-19 | Tellabs Operations, Inc. | Filter for impulse response shortening, with addition spectral constraints, for multicarrier transmission |
US6112094A (en) | 1998-04-06 | 2000-08-29 | Ericsson Inc. | Orthogonal frequency hopping pattern re-use scheme |
JPH11298954A (ja) | 1998-04-08 | 1999-10-29 | Hitachi Ltd | 無線通信方法及び無線通信装置 |
US6353620B1 (en) | 1998-04-09 | 2002-03-05 | Ericsson Inc. | System and method for facilitating inter-nodal protocol agreement in a telecommunications |
DE69905242T2 (de) | 1998-04-21 | 2003-09-11 | Thomson Multimedia Sa | Verfahren zur übertragung in einem hauskommunikationsnetz mit einem drahtlosen kommunikationskanal |
US6567425B1 (en) | 1998-04-23 | 2003-05-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Bearer independent signaling protocol |
US6075350A (en) | 1998-04-24 | 2000-06-13 | Lockheed Martin Energy Research Corporation | Power line conditioner using cascade multilevel inverters for voltage regulation, reactive power correction, and harmonic filtering |
US6198775B1 (en) * | 1998-04-28 | 2001-03-06 | Ericsson Inc. | Transmit diversity method, systems, and terminals using scramble coding |
JP3955680B2 (ja) | 1998-05-12 | 2007-08-08 | 株式会社エヌ・ティ・ティ・ドコモ | 時分割通信方式の移動通信システムにおける無線チャネルアクセス方法、その方法を使用する基地局及び移動局 |
EP0997011B1 (en) | 1998-05-12 | 2007-07-11 | Samsung Electronics Co., Ltd. | Device and method for reducing the peak-to-average power ratio of a mobile station's transmit power |
KR100383575B1 (ko) | 1998-05-12 | 2004-06-26 | 삼성전자주식회사 | 단말기의송신전력에서피크전력대평균전력비를줄이기위한확산변조방법및장치 |
GB2337414A (en) | 1998-05-14 | 1999-11-17 | Fujitsu Ltd | Soft handoff in cellular communications networks |
US6643275B1 (en) | 1998-05-15 | 2003-11-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
KR100291476B1 (ko) | 1998-05-25 | 2001-07-12 | 윤종용 | 파일럿측정요구명령제어방법및시스템 |
JP2000004215A (ja) | 1998-06-16 | 2000-01-07 | Matsushita Electric Ind Co Ltd | 送受信システム |
JP3092798B2 (ja) | 1998-06-30 | 2000-09-25 | 日本電気株式会社 | 適応送受信装置 |
JP2000022618A (ja) | 1998-07-03 | 2000-01-21 | Hitachi Ltd | 基地局およびアンテナビームの制御方法 |
RU2141706C1 (ru) | 1998-07-06 | 1999-11-20 | Военная академия связи | Способ и устройство адаптивной пространственной фильтрации сигналов |
KR100318959B1 (ko) | 1998-07-07 | 2002-04-22 | 윤종용 | 부호분할다중접속통신시스템의서로다른부호간의간섭을제거하는장치및방법 |
US6621809B1 (en) | 1998-07-12 | 2003-09-16 | Samsung Electronics Co., Ltd. | Device and method for gating transmission in a CDMA mobile communication system |
KR100620087B1 (ko) | 1998-07-13 | 2006-09-05 | 소니 가부시끼 가이샤 | 통신방법, 송신기 및 수신기 |
BR9906601A (pt) | 1998-07-16 | 2000-11-21 | Samsung Electric | Dispositivos e processos de processamento de dados de pacote para uma estação base e para uma estação móvel em um sistema de comunicação móvel cdma, e, processo para maximizar a saìda de dados de pacote em um sistema de comunicação móvel |
US6636525B1 (en) | 1998-08-19 | 2003-10-21 | International Business Machines Corporation | Destination dependent coding for discrete multi-tone modulation |
KR100429540B1 (ko) | 1998-08-26 | 2004-08-09 | 삼성전자주식회사 | 이동통신시스템의패킷데이터통신장치및방법 |
US6798736B1 (en) | 1998-09-22 | 2004-09-28 | Qualcomm Incorporated | Method and apparatus for transmitting and receiving variable rate data |
JP2000102065A (ja) | 1998-09-24 | 2000-04-07 | Toshiba Corp | 無線通信基地局装置 |
CA2282942A1 (en) | 1998-11-09 | 2000-05-09 | Lucent Technologies Inc. | Efficient authentication with key update |
US6038147A (en) | 1998-11-12 | 2000-03-14 | Lucent Technologies Inc. | Power supply employing circulating capacitor and method of operation thereof |
US6542485B1 (en) | 1998-11-25 | 2003-04-01 | Lucent Technologies Inc. | Methods and apparatus for wireless communication using time division duplex time-slotted CDMA |
US6473399B1 (en) | 1998-11-30 | 2002-10-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for determining an optimum timeout under varying data rates in an RLC wireless system which uses a PDU counter |
US6590881B1 (en) | 1998-12-04 | 2003-07-08 | Qualcomm, Incorporated | Method and apparatus for providing wireless communication system synchronization |
DE69815113T2 (de) | 1998-12-04 | 2004-04-08 | Lucent Technologies Inc. | Fehlerverschleierung und -korrektur für Sprach-, Bild- und Videosignale |
JP2000184425A (ja) | 1998-12-15 | 2000-06-30 | Toshiba Corp | 無線通信基地局装置 |
US6654429B1 (en) | 1998-12-31 | 2003-11-25 | At&T Corp. | Pilot-aided channel estimation for OFDM in wireless systems |
GB2345612B (en) | 1998-12-31 | 2003-09-03 | Nokia Mobile Phones Ltd | Measurement report transmission in a telecommunications system |
EP1705852B1 (en) | 1999-01-08 | 2010-02-10 | Sony Deutschland Gmbh | Synchronisation symbol structure for OFDM system |
US6393012B1 (en) | 1999-01-13 | 2002-05-21 | Qualcomm Inc. | System for allocating resources in a communication system |
US6229795B1 (en) * | 1999-01-13 | 2001-05-08 | Qualcomm Incorporated | System for allocating resources in a communication system |
EP1021019A1 (en) * | 1999-01-15 | 2000-07-19 | Sony International (Europe) GmbH | Quasi-differential modulation/demodulation method for multi-amplitude digital modulated signals and OFDM system |
US6160651A (en) | 1999-01-25 | 2000-12-12 | Telcordia Technologies, Inc. | Optical layer survivability and security system using optical label switching and high-speed optical header reinsertion |
US6388998B1 (en) | 1999-02-04 | 2002-05-14 | Lucent Technologies Inc. | Reuse of codes and spectrum in a CDMA system with multiple-sector cells |
US6256478B1 (en) | 1999-02-18 | 2001-07-03 | Eastman Kodak Company | Dynamic packet sizing in an RF communications system |
US6597746B1 (en) | 1999-02-18 | 2003-07-22 | Globespanvirata, Inc. | System and method for peak to average power ratio reduction |
CA2262315A1 (en) | 1999-02-19 | 2000-08-19 | Northern Telecom Limited | Joint optimal power balance for coded/tdm constituent data channels |
US6259918B1 (en) | 1999-02-26 | 2001-07-10 | Telefonaktiebolaget Lm (Publ) | Preservation of cell borders at hand-off within a smart antenna cellular system |
US6317435B1 (en) | 1999-03-08 | 2001-11-13 | Qualcomm Incorporated | Method and apparatus for maximizing the use of available capacity in a communication system |
US6487243B1 (en) | 1999-03-08 | 2002-11-26 | International Business Machines Corporation | Modems, methods, and computer program products for recovering from errors in a tone reversal sequence between two modems |
US6987746B1 (en) * | 1999-03-15 | 2006-01-17 | Lg Information & Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
KR20000060428A (ko) | 1999-03-16 | 2000-10-16 | 윤종용 | 코드분할다중접속 시스템에서 기지국간 직접 연결을 이용한 소프트/소프터 핸드오프의 강화 방법 |
US6693952B1 (en) * | 1999-03-16 | 2004-02-17 | Lucent Technologies Inc. | Dynamic code allocation for downlink shared channels |
US7151761B1 (en) | 1999-03-19 | 2006-12-19 | Telefonaktiebolaget L M Ericsson (Publ) | Code reservation for interference measurement in a CDMA radiocommunication system |
US6483820B1 (en) | 1999-03-22 | 2002-11-19 | Ericsson Inc. | System and method for dynamic radio resource allocation for non-transparent high-speed circuit-switched data services |
US6430401B1 (en) | 1999-03-29 | 2002-08-06 | Lucent Technologies Inc. | Technique for effectively communicating multiple digital representations of a signal |
GB2348776B (en) | 1999-04-06 | 2003-07-09 | Motorola Ltd | A communications network and method of allocating resource thefor |
US6249683B1 (en) | 1999-04-08 | 2001-06-19 | Qualcomm Incorporated | Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel |
EP1047209A1 (en) | 1999-04-19 | 2000-10-25 | Interuniversitair Micro-Elektronica Centrum Vzw | A method and apparatus for multiuser transmission |
US6937665B1 (en) | 1999-04-19 | 2005-08-30 | Interuniversitaire Micron Elektronica Centrum | Method and apparatus for multi-user transmission |
JP4224168B2 (ja) | 1999-04-23 | 2009-02-12 | パナソニック株式会社 | 基地局装置及びピーク電力抑圧方法 |
US6614857B1 (en) | 1999-04-23 | 2003-09-02 | Lucent Technologies Inc. | Iterative channel estimation and compensation based thereon |
US6490268B1 (en) | 1999-05-12 | 2002-12-03 | Samsung Electronics, Co., Ltd. | Method of providing burst timing for high-speed data transmission in a base station transceiver system of a mobile communication system |
JP3236273B2 (ja) | 1999-05-17 | 2001-12-10 | 三菱電機株式会社 | マルチキャリア伝送システムおよびマルチキャリア変調方法 |
US6674787B1 (en) * | 1999-05-19 | 2004-01-06 | Interdigital Technology Corporation | Raising random access channel packet payload |
US6445917B1 (en) | 1999-05-19 | 2002-09-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile station measurements with event-based reporting |
US6674810B1 (en) * | 1999-05-27 | 2004-01-06 | 3Com Corporation | Method and apparatus for reducing peak-to-average power ratio in a discrete multi-tone signal |
JP2001057545A (ja) | 1999-06-02 | 2001-02-27 | Texas Instr Inc <Ti> | スペクトラム拡散チャネルの推定方法と装置 |
US6631126B1 (en) | 1999-06-11 | 2003-10-07 | Lucent Technologies Inc. | Wireless communications using circuit-oriented and packet-oriented frame selection/distribution functions |
FR2794915A1 (fr) | 1999-06-14 | 2000-12-15 | Canon Kk | Procede et dispositif d'emission, procede et dispositif de reception, et systemes les mettant en oeuvre |
US6539213B1 (en) * | 1999-06-14 | 2003-03-25 | Time Domain Corporation | System and method for impulse radio power control |
US7095708B1 (en) | 1999-06-23 | 2006-08-22 | Cingular Wireless Ii, Llc | Methods and apparatus for use in communicating voice and high speed data in a wireless communication system |
US6363060B1 (en) | 1999-06-30 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for fast WCDMA acquisition |
JP3518426B2 (ja) | 1999-06-30 | 2004-04-12 | Kddi株式会社 | Cdma移動通信システムにおける符号割当方法 |
US6657949B1 (en) | 1999-07-06 | 2003-12-02 | Cisco Technology, Inc. | Efficient request access for OFDM systems |
US6828293B1 (en) | 1999-07-28 | 2004-12-07 | Ciba Specialty Chemicals Corporation | Water-soluble granules of salen-type manganese complexes |
US6831943B1 (en) | 1999-08-13 | 2004-12-14 | Texas Instruments Incorporated | Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification |
JP2001069046A (ja) | 1999-08-30 | 2001-03-16 | Fujitsu Ltd | 送受信システムおよび受信装置 |
US6480826B2 (en) * | 1999-08-31 | 2002-11-12 | Accenture Llp | System and method for a telephonic emotion detection that provides operator feedback |
US6542743B1 (en) | 1999-08-31 | 2003-04-01 | Qualcomm, Incorporated | Method and apparatus for reducing pilot search times utilizing mobile station location information |
US6765969B1 (en) | 1999-09-01 | 2004-07-20 | Motorola, Inc. | Method and device for multi-user channel estimation |
US6928047B1 (en) | 1999-09-11 | 2005-08-09 | The University Of Delaware | Precoded OFDM systems robust to spectral null channels and vector OFDM systems with reduced cyclic prefix length |
US6449246B1 (en) | 1999-09-15 | 2002-09-10 | Telcordia Technologies, Inc. | Multicarrier personal access communication system |
IL148917A0 (en) | 1999-10-02 | 2002-09-12 | Samsung Electronics Co Ltd | Apparatus and method for gating data on a control channel in a cdma communication system |
RU2242091C2 (ru) | 1999-10-02 | 2004-12-10 | Самсунг Электроникс Ко., Лтд. | Устройство и способ стробирования данных, передаваемых по каналу управления в системе связи мдкр |
US6870882B1 (en) * | 1999-10-08 | 2005-03-22 | At&T Corp. | Finite-length equalization over multi-input multi-output channels |
US6337659B1 (en) | 1999-10-25 | 2002-01-08 | Gamma Nu, Inc. | Phased array base station antenna system having distributed low power amplifiers |
US6985466B1 (en) | 1999-11-09 | 2006-01-10 | Arraycomm, Inc. | Downlink signal processing in CDMA systems utilizing arrays of antennae |
US6721568B1 (en) | 1999-11-10 | 2004-04-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Admission control in a mobile radio communications system |
KR100602022B1 (ko) | 1999-12-15 | 2006-07-20 | 유티스타콤코리아 유한회사 | 이동통신 시스템에서 동기식 기지국과 비동기식 기지국간핸드오프에 필요한 파라메타 전송방법 |
EP1230761B1 (en) * | 1999-11-17 | 2005-10-19 | Telefonaktiebolaget LM Ericsson (publ) | Acceleration dependent channel switching in mobile telecommunications |
US6466800B1 (en) | 1999-11-19 | 2002-10-15 | Siemens Information And Communication Mobile, Llc | Method and system for a wireless communication system incorporating channel selection algorithm for 2.4 GHz direct sequence spread spectrum cordless telephone system |
JP3289718B2 (ja) | 1999-11-24 | 2002-06-10 | 日本電気株式会社 | 時分割多重アクセス方法及び基準局装置、端末局装置 |
AU760229B2 (en) | 1999-11-29 | 2003-05-08 | Qualcomm Incorporated | Apparatus and method for assigning a common packet channel in a CDMA communication system |
DE19957288C1 (de) | 1999-11-29 | 2001-05-10 | Siemens Ag | Verfahren zur Signalisierung einer Funkkanalstruktur in einem Funk-Kommunikationssystem |
US6763009B1 (en) | 1999-12-03 | 2004-07-13 | Lucent Technologies Inc. | Down-link transmission scheduling in CDMA data networks |
US6351499B1 (en) | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US6690951B1 (en) * | 1999-12-20 | 2004-02-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Dynamic size allocation system and method |
CA2327734A1 (en) | 1999-12-21 | 2001-06-21 | Eta Sa Fabriques D'ebauches | Ultra-thin piezoelectric resonator |
US6628673B1 (en) | 1999-12-29 | 2003-09-30 | Atheros Communications, Inc. | Scalable communication system using overlaid signals and multi-carrier frequency communication |
US6678318B1 (en) * | 2000-01-11 | 2004-01-13 | Agere Systems Inc. | Method and apparatus for time-domain equalization in discrete multitone transceivers |
US7463600B2 (en) | 2000-01-20 | 2008-12-09 | Nortel Networks Limited | Frame structure for variable rate wireless channels transmitting high speed data |
US6907020B2 (en) | 2000-01-20 | 2005-06-14 | Nortel Networks Limited | Frame structures supporting voice or streaming communications with high speed data communications in wireless access networks |
US6804307B1 (en) | 2000-01-27 | 2004-10-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for efficient transmit diversity using complex space-time block codes |
KR100387034B1 (ko) | 2000-02-01 | 2003-06-11 | 삼성전자주식회사 | 무선통신 시스템의 패킷데이타 서비스를 위한스케듈링장치 및 방법 |
FI117465B (fi) | 2000-02-03 | 2006-10-31 | Danisco Sweeteners Oy | Menetelmä pureskeltavien ytimien kovapinnoittamiseksi |
US6754511B1 (en) | 2000-02-04 | 2004-06-22 | Harris Corporation | Linear signal separation using polarization diversity |
GB0002985D0 (en) | 2000-02-09 | 2000-03-29 | Travelfusion Limited | Integrated journey planner |
US6507601B2 (en) * | 2000-02-09 | 2003-01-14 | Golden Bridge Technology | Collision avoidance |
US6546248B1 (en) | 2000-02-10 | 2003-04-08 | Qualcomm, Incorporated | Method and apparatus for generating pilot strength measurement messages |
JP3826653B2 (ja) | 2000-02-25 | 2006-09-27 | Kddi株式会社 | 無線通信システムのサブキャリア割当方法 |
EP1260035A2 (en) | 2000-02-29 | 2002-11-27 | HRL Laboratories, LLC | Cooperative mobile antenna system |
JP2001245355A (ja) | 2000-03-01 | 2001-09-07 | Mitsubishi Electric Corp | 移動通信におけるパケット伝送システム |
JP2001249802A (ja) | 2000-03-07 | 2001-09-14 | Sony Corp | 伝送方法、伝送システム、伝送制御装置及び入力装置 |
KR100493068B1 (ko) | 2000-03-08 | 2005-06-02 | 삼성전자주식회사 | 이동통신시스템에서 피드백 정보를 이용하는 반맹목적방식의 송신안테나어레이 장치 및 방법 |
DE60029012T2 (de) | 2000-03-15 | 2006-12-07 | Nokia Corp. | Verfahren und vorrichtung für sende-diversity |
US6473467B1 (en) | 2000-03-22 | 2002-10-29 | Qualcomm Incorporated | Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system |
US6940845B2 (en) | 2000-03-23 | 2005-09-06 | At & T, Corp. | Asymmetric measurement-based dynamic packet assignment system and method for wireless data services |
JP2001285927A (ja) | 2000-03-29 | 2001-10-12 | Matsushita Electric Ind Co Ltd | 通信端末装置及び無線通信方法 |
US6493331B1 (en) | 2000-03-30 | 2002-12-10 | Qualcomm Incorporated | Method and apparatus for controlling transmissions of a communications systems |
DE60021772T2 (de) | 2000-04-07 | 2006-04-20 | Nokia Corp. | Verfahren und vorrichtung zur übertragung mit mehreren antennen |
US7289570B2 (en) | 2000-04-10 | 2007-10-30 | Texas Instruments Incorporated | Wireless communications |
US6934275B1 (en) | 2000-04-17 | 2005-08-23 | Motorola, Inc. | Apparatus and method for providing separate forward dedicated and shared control channels in a communications system |
US6954481B1 (en) | 2000-04-18 | 2005-10-11 | Flarion Technologies, Inc. | Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
US6961364B1 (en) | 2000-04-18 | 2005-11-01 | Flarion Technologies, Inc. | Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
US6807146B1 (en) | 2000-04-21 | 2004-10-19 | Atheros Communications, Inc. | Protocols for scalable communication system using overland signals and multi-carrier frequency communication |
EP1277317A2 (en) | 2000-04-22 | 2003-01-22 | Atheros Communications, Inc. | Multi-carrier communication systems employing variable ofdm-symbol rates and number of carriers |
BR0006719A (pt) | 2000-05-04 | 2001-09-25 | Cristiano Alberto Ribeiro Sant | Composição em forma de creme, gel e creme gel aplicada na terapêutica da doença de peyronie, de colagenoses e patologias fibróticas à base de vitamina-e, papaìna 2% e hialuronidase |
US6748220B1 (en) | 2000-05-05 | 2004-06-08 | Nortel Networks Limited | Resource allocation in wireless networks |
US6987729B1 (en) * | 2000-05-11 | 2006-01-17 | Lucent Technologies Inc. | Method and apparatus for admission management in wireless communication systems |
FI20001133A (fi) | 2000-05-12 | 2001-11-13 | Nokia Corp | Menetelmä päätelaitteiden ja yhteysaseman välisen tiedonsiirron järjestämiseksi tiedonsiirtojärjestelmässä |
FI20001160A (fi) | 2000-05-15 | 2001-11-16 | Nokia Networks Oy | Pilottisignaalin toteuttamismenetelmä |
DE60038198T2 (de) | 2000-05-17 | 2009-03-26 | Matsushita Electric Industrial Co., Ltd., Kadoma-shi | Hybrides ARQ-System mit Daten- und Kontrollkanal für Datenpaketübertragung |
US6529525B1 (en) * | 2000-05-19 | 2003-03-04 | Motorola, Inc. | Method for supporting acknowledged transport layer protocols in GPRS/edge host application |
CA2310188A1 (en) | 2000-05-30 | 2001-11-30 | Mark J. Frazer | Communication structure with channels configured responsive to reception quality |
KR100370746B1 (ko) | 2000-05-30 | 2003-02-05 | 한국전자통신연구원 | 다차원 직교 자원 도약 다중화 통신 방식 및 장치 |
GB2363256B (en) | 2000-06-07 | 2004-05-12 | Motorola Inc | Adaptive antenna array and method of controlling operation thereof |
US6839325B2 (en) | 2000-06-09 | 2005-01-04 | Texas Instruments Incorporated | Wireless communication system which uses ARQ packets to ACK a plurality of packets from an 802.15 superpacket |
US7248841B2 (en) | 2000-06-13 | 2007-07-24 | Agee Brian G | Method and apparatus for optimization of wireless multipoint electromagnetic communication networks |
US6337983B1 (en) * | 2000-06-21 | 2002-01-08 | Motorola, Inc. | Method for autonomous handoff in a wireless communication system |
US6701165B1 (en) | 2000-06-21 | 2004-03-02 | Agere Systems Inc. | Method and apparatus for reducing interference in non-stationary subscriber radio units using flexible beam selection |
US20020015405A1 (en) * | 2000-06-26 | 2002-02-07 | Risto Sepponen | Error correction of important fields in data packet communications in a digital mobile radio network |
JP2002016531A (ja) | 2000-06-27 | 2002-01-18 | Nec Corp | Cdma通信方式及びその方法 |
JP2002026790A (ja) | 2000-07-03 | 2002-01-25 | Matsushita Electric Ind Co Ltd | 無線通信装置及び無線通信方法 |
DE10032426B4 (de) | 2000-07-04 | 2006-01-12 | Siemens Ag | Strahlformungsverfahren |
US7301018B2 (en) | 2000-07-11 | 2007-11-27 | Japan Science And Technology Corporation | Probe for mass spectrometry of liquid sample |
FR2814301B1 (fr) | 2000-07-17 | 2004-11-12 | Telediffusion De France Tdf | Synchronisation d'un signal amrf |
US7418043B2 (en) | 2000-07-19 | 2008-08-26 | Lot 41 Acquisition Foundation, Llc | Software adaptable high performance multicarrier transmission protocol |
EP1221778A4 (en) | 2000-07-26 | 2008-08-27 | Mitsubishi Electric Corp | MULTI-CARRIER CODE DIVISION MULTI-ACCESS (CDMA) COMMUNICATION DEVICE, CDMA MULTI-CARRIER DEVICE, AND MULTI-CARRIER CDMA RECEPTION DEVICE |
GB2366938B (en) | 2000-08-03 | 2004-09-01 | Orange Personal Comm Serv Ltd | Authentication in a mobile communications network |
DE10039429A1 (de) | 2000-08-11 | 2002-03-07 | Siemens Ag | Verfahren zur Signalübertragung in einem Funk-Kommunikationssystem |
GB0020088D0 (en) | 2000-08-15 | 2000-10-04 | Fujitsu Ltd | Adaptive beam forming |
US6980540B1 (en) | 2000-08-16 | 2005-12-27 | Lucent Technologies Inc. | Apparatus and method for acquiring an uplink traffic channel, in wireless communications systems |
US6487184B1 (en) | 2000-08-25 | 2002-11-26 | Motorola, Inc. | Method and apparatus for supporting radio acknowledgement information for a uni-directional user data channel |
US6937592B1 (en) | 2000-09-01 | 2005-08-30 | Intel Corporation | Wireless communications system that supports multiple modes of operation |
US6850481B2 (en) * | 2000-09-01 | 2005-02-01 | Nortel Networks Limited | Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system |
US6985434B2 (en) * | 2000-09-01 | 2006-01-10 | Nortel Networks Limited | Adaptive time diversity and spatial diversity for OFDM |
US6898441B1 (en) | 2000-09-12 | 2005-05-24 | Lucent Technologies Inc. | Communication system having a flexible transmit configuration |
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US6694147B1 (en) | 2000-09-15 | 2004-02-17 | Flarion Technologies, Inc. | Methods and apparatus for transmitting information between a basestation and multiple mobile stations |
US6802035B2 (en) | 2000-09-19 | 2004-10-05 | Intel Corporation | System and method of dynamically optimizing a transmission mode of wirelessly transmitted information |
US6842487B1 (en) * | 2000-09-22 | 2005-01-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Cyclic delay diversity for mitigating intersymbol interference in OFDM systems |
US6658258B1 (en) | 2000-09-29 | 2003-12-02 | Lucent Technologies Inc. | Method and apparatus for estimating the location of a mobile terminal |
US6778513B2 (en) | 2000-09-29 | 2004-08-17 | Arraycomm, Inc. | Method and apparatus for separting multiple users in a shared-channel communication system |
US7349371B2 (en) | 2000-09-29 | 2008-03-25 | Arraycomm, Llc | Selecting random access channels |
US6496790B1 (en) | 2000-09-29 | 2002-12-17 | Intel Corporation | Management of sensors in computer systems |
KR100452536B1 (ko) | 2000-10-02 | 2004-10-12 | 가부시키가이샤 엔.티.티.도코모 | 이동통신기지국 장치 |
JP2002111556A (ja) | 2000-10-02 | 2002-04-12 | Ntt Docomo Inc | 基地局装置 |
US7072315B1 (en) | 2000-10-10 | 2006-07-04 | Adaptix, Inc. | Medium access control for orthogonal frequency-division multiple-access (OFDMA) cellular networks |
FR2815507B1 (fr) | 2000-10-16 | 2003-01-31 | Cit Alcatel | Procede de gestion des ressources radio dans un reseau de telecommunication interactif |
US6704571B1 (en) * | 2000-10-17 | 2004-03-09 | Cisco Technology, Inc. | Reducing data loss during cell handoffs |
US6870808B1 (en) | 2000-10-18 | 2005-03-22 | Adaptix, Inc. | Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks |
WO2002032906A1 (en) | 2000-10-20 | 2002-04-25 | Biochemie Gesellschaft M.B.H. | Pharmaceutical compositions |
CA2394957C (en) | 2000-10-20 | 2006-08-01 | Samsung Electronics Co., Ltd. | Apparatus and method for determining a data rate of packet data in a mobile communication system |
US6907270B1 (en) | 2000-10-23 | 2005-06-14 | Qualcomm Inc. | Method and apparatus for reduced rank channel estimation in a communications system |
US6788959B2 (en) | 2000-10-30 | 2004-09-07 | Nokia Corporation | Method and apparatus for transmitting and receiving dynamic configuration parameters in a third generation cellular telephone network |
DE60044436D1 (de) | 2000-11-03 | 2010-07-01 | Sony Deutschland Gmbh | Sendeleistungsregelung für OFDM-Kommunikationsverbindungen |
ES2281445T3 (es) | 2000-11-07 | 2007-10-01 | Nokia Corporation | Metodo y sistema para planificar en enlace ascendente el trafico de paquetes de datos en un sistema inalambrico. |
US6567387B1 (en) | 2000-11-07 | 2003-05-20 | Intel Corporation | System and method for data transmission from multiple wireless base transceiver stations to a subscriber unit |
US20020090024A1 (en) | 2000-11-15 | 2002-07-11 | Tan Keng Tiong | Method and apparatus for non-linear code-division multiple access technology |
WO2002041524A1 (en) | 2000-11-17 | 2002-05-23 | Nokia Corporation | Method for controlling the data signal weighting in multi-element transceivers and corresponding devices and telecommunications network |
WO2002045456A1 (en) | 2000-11-28 | 2002-06-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Release of user equipment using a page procedure in a cellular communication system |
GB0029424D0 (en) | 2000-12-02 | 2001-01-17 | Koninkl Philips Electronics Nv | Radio communication system |
US20040048609A1 (en) | 2000-12-11 | 2004-03-11 | Minoru Kosaka | Radio communication system |
US20020077152A1 (en) | 2000-12-15 | 2002-06-20 | Johnson Thomas J. | Wireless communication methods and systems using multiple overlapping sectored cells |
US6947748B2 (en) | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
CN1524367A (zh) | 2000-12-15 | 2004-08-25 | ˹���ķ��Ź�˾ | 具有自适应群集配置和交换的多载波通信 |
WO2002049306A2 (en) | 2000-12-15 | 2002-06-20 | Broadstorm Telecommunications, Inc. | Multi-carrier communications with group-based subcarrier allocation |
US6862268B2 (en) | 2000-12-29 | 2005-03-01 | Nortel Networks, Ltd | Method and apparatus for managing a CDMA supplemental channel |
US6920119B2 (en) | 2001-01-09 | 2005-07-19 | Motorola, Inc. | Method for scheduling and allocating data transmissions in a broad-band communications system |
US6829293B2 (en) | 2001-01-16 | 2004-12-07 | Mindspeed Technologies, Inc. | Method and apparatus for line probe signal processing |
US6813284B2 (en) | 2001-01-17 | 2004-11-02 | Qualcomm Incorporated | Method and apparatus for allocating data streams given transmission time interval (TTI) constraints |
US6801790B2 (en) | 2001-01-17 | 2004-10-05 | Lucent Technologies Inc. | Structure for multiple antenna configurations |
EP1227601A1 (en) * | 2001-01-25 | 2002-07-31 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Downlink scheduling using parallel code trees |
JP3494998B2 (ja) | 2001-01-25 | 2004-02-09 | 株式会社ソニー・コンピュータエンタテインメント | 情報通信システム、情報処理装置、通信特定情報の保存方法、通信特定情報の保存プログラムを記録したコンピュータ読み取り可能な記録媒体、通信特定情報の保存プログラム |
US6954448B2 (en) | 2001-02-01 | 2005-10-11 | Ipr Licensing, Inc. | Alternate channel for carrying selected message types |
RU2192094C1 (ru) | 2001-02-05 | 2002-10-27 | Гармонов Александр Васильевич | Способ когерентной разнесенной передачи сигнала |
FR2820574B1 (fr) | 2001-02-08 | 2005-08-05 | Wavecom Sa | Procede d'extraction d'un motif de symboles de reference servant a estimer la fonction de transfert d'un canal de transmission, signal, dispositif et procedes correspondants |
US7120134B2 (en) | 2001-02-15 | 2006-10-10 | Qualcomm, Incorporated | Reverse link channel architecture for a wireless communication system |
US6985453B2 (en) | 2001-02-15 | 2006-01-10 | Qualcomm Incorporated | Method and apparatus for link quality feedback in a wireless communication system |
US6975868B2 (en) | 2001-02-21 | 2005-12-13 | Qualcomm Incorporated | Method and apparatus for IS-95B reverse link supplemental code channel frame validation and fundamental code channel rate decision improvement |
US20020160781A1 (en) | 2001-02-23 | 2002-10-31 | Gunnar Bark | System, method and apparatus for facilitating resource allocation in a communication system |
US6937641B2 (en) | 2001-02-28 | 2005-08-30 | Golden Bridge Technology, Inc. | Power-controlled random access |
US6930470B2 (en) | 2001-03-01 | 2005-08-16 | Nortel Networks Limited | System and method for code division multiple access communication in a wireless communication environment |
US6675012B2 (en) | 2001-03-08 | 2004-01-06 | Nokia Mobile Phones, Ltd. | Apparatus, and associated method, for reporting a measurement summary in a radio communication system |
US6940827B2 (en) | 2001-03-09 | 2005-09-06 | Adaptix, Inc. | Communication system using OFDM for one direction and DSSS for another direction |
US6934340B1 (en) | 2001-03-19 | 2005-08-23 | Cisco Technology, Inc. | Adaptive control system for interference rejections in a wireless communications system |
US6478422B1 (en) | 2001-03-19 | 2002-11-12 | Richard A. Hansen | Single bifocal custom shooters glasses |
US6771706B2 (en) * | 2001-03-23 | 2004-08-03 | Qualcomm Incorporated | Method and apparatus for utilizing channel state information in a wireless communication system |
US6748024B2 (en) | 2001-03-28 | 2004-06-08 | Nokia Corporation | Non-zero complex weighted space-time code for multiple antenna transmission |
US7042897B1 (en) | 2001-04-05 | 2006-05-09 | Arcwave, Inc | Medium access control layer protocol in a distributed environment |
US6859503B2 (en) | 2001-04-07 | 2005-02-22 | Motorola, Inc. | Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel |
US7145959B2 (en) | 2001-04-25 | 2006-12-05 | Magnolia Broadband Inc. | Smart antenna based spectrum multiplexing using existing pilot signals for orthogonal frequency division multiplexing (OFDM) modulations |
US6625172B2 (en) | 2001-04-26 | 2003-09-23 | Joseph P. Odenwalder | Rescheduling scheduled transmissions |
US7230941B2 (en) | 2001-04-26 | 2007-06-12 | Qualcomm Incorporated | Preamble channel decoding |
US6611231B2 (en) | 2001-04-27 | 2003-08-26 | Vivato, Inc. | Wireless packet switched communication systems and networks using adaptively steered antenna arrays |
US7188300B2 (en) | 2001-05-01 | 2007-03-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Flexible layer one for radio interface to PLMN |
US7042856B2 (en) | 2001-05-03 | 2006-05-09 | Qualcomm, Incorporation | Method and apparatus for controlling uplink transmissions of a wireless 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 |
US7047016B2 (en) | 2001-05-16 | 2006-05-16 | Qualcomm, Incorporated | Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system |
US6662024B2 (en) | 2001-05-16 | 2003-12-09 | Qualcomm Incorporated | Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system |
DE60215073T2 (de) | 2001-05-17 | 2007-05-16 | Samsung Electronics Co., Ltd., Suwon | Mobiles Kommunikationsgerät mit Gruppenantenne und mobiles kommunikationsverfahren dafür |
US6751187B2 (en) * | 2001-05-17 | 2004-06-15 | Qualcomm Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission |
FR2825208B1 (fr) | 2001-05-22 | 2004-07-09 | Cit Alcatel | Procede d'attribution de ressources en communication dans un systeme de telecommunications du type mf-tdma |
WO2002098051A1 (en) | 2001-05-25 | 2002-12-05 | Regents Of The University Of Minnesota | Space-time coded transmissions within a wireless communication network |
US6904097B2 (en) | 2001-06-01 | 2005-06-07 | Motorola, Inc. | Method and apparatus for adaptive signaling in a QAM communication system |
US20020193146A1 (en) | 2001-06-06 | 2002-12-19 | Mark Wallace | Method and apparatus for antenna diversity in a wireless communication system |
US7206350B2 (en) | 2001-06-11 | 2007-04-17 | Unique Broadband Systems, Inc. | OFDM multiple sub-channel communication system |
US7212564B2 (en) | 2001-06-21 | 2007-05-01 | Qualcomm Incorporated | Method of tone allocation for tone hopping sequences |
US7027523B2 (en) | 2001-06-22 | 2006-04-11 | Qualcomm Incorporated | Method and apparatus for transmitting data in a time division duplexed (TDD) communication system |
CN1547861A (zh) | 2001-06-27 | 2004-11-17 | ���˹���Ѷ��� | 无线通信系统中控制信息的传递 |
GB0116015D0 (en) | 2001-06-29 | 2001-08-22 | Simoco Digital Systems Ltd | Communications systems |
WO2003001981A2 (en) | 2001-06-29 | 2003-01-09 | The Government Of The United State Of America As Represent By The Secretary Of The Department Of Health And Human Services | Method of promoting engraftment of a donor transplant in a recipient host |
US6963543B2 (en) | 2001-06-29 | 2005-11-08 | Qualcomm Incorporated | Method and system for group call service |
JP2003018054A (ja) | 2001-07-02 | 2003-01-17 | Ntt Docomo Inc | 無線通信方法及びシステム並びに通信装置 |
US6751444B1 (en) | 2001-07-02 | 2004-06-15 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
DE10132492A1 (de) | 2001-07-03 | 2003-01-23 | Hertz Inst Heinrich | Adaptives Signalverarbeitungsverfahren zur bidirektionalen Funkübertragung in einem MIMO-Kanal und MIMO-System zur Verfahrensdurchführung |
JP3607643B2 (ja) | 2001-07-13 | 2005-01-05 | 松下電器産業株式会社 | マルチキャリア送信装置、マルチキャリア受信装置、およびマルチキャリア無線通信方法 |
US7236536B2 (en) | 2001-07-26 | 2007-06-26 | Lucent Technologies Inc. | Method and apparatus for detection and decoding of signals received from a linear propagation channel |
US7197282B2 (en) | 2001-07-26 | 2007-03-27 | Ericsson Inc. | Mobile station loop-back signal processing |
US20030027579A1 (en) | 2001-08-03 | 2003-02-06 | Uwe Sydon | System for and method of providing an air interface with variable data rate by switching the bit time |
JP4318412B2 (ja) | 2001-08-08 | 2009-08-26 | 富士通株式会社 | 通信システムにおける送受信装置及び送受信方法 |
US6776765B2 (en) | 2001-08-21 | 2004-08-17 | Synovis Life Technologies, Inc. | Steerable stylet |
JP4127757B2 (ja) | 2001-08-21 | 2008-07-30 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信システム、通信端末装置、及びバースト信号送信方法 |
KR100459557B1 (ko) * | 2001-08-23 | 2004-12-03 | 삼성전자주식회사 | 고속 순방향 패킷 접속 통신 시스템에서 데이터 상태정보를 나타내기 위한 혼화 자동 재전송 요구 채널 번호할당 방법 |
JP2003069472A (ja) | 2001-08-24 | 2003-03-07 | Matsushita Electric Ind Co Ltd | 受信端末装置及び通信システム |
KR100474689B1 (ko) | 2001-08-30 | 2005-03-08 | 삼성전자주식회사 | 이동통신 시스템에서 소프트 핸드오프 도중의 전력제어 방법 |
ES2295211T3 (es) * | 2001-09-05 | 2008-04-16 | Nokia Corporation | Metodo de señalizacion de bucle cerrado para controlar multiples haces de transmision y dispositivo transceptor adaptado de forma correspondiente. |
EP1428356B1 (en) * | 2001-09-07 | 2007-04-25 | Telefonaktiebolaget LM Ericsson (publ) | Method and arrangements to achieve a dynamic resource distribution policy in packet based communication networks |
FR2829642B1 (fr) | 2001-09-12 | 2004-01-16 | Eads Defence & Security Ntwk | Signal multiporteuses, procede de poursuite d'un canal de transmission a partir d'un tel signal et dispositif pour sa mise en oeuvre |
US7106319B2 (en) | 2001-09-14 | 2006-09-12 | Seiko Epson Corporation | Power supply circuit, voltage conversion circuit, semiconductor device, display device, display panel, and electronic equipment |
AU2002327681A1 (en) | 2001-09-24 | 2003-04-07 | Atheros Communications, Inc. | Method and system for variable rate acknowledgement for wireless communication protocols |
JP2003101515A (ja) | 2001-09-25 | 2003-04-04 | Sony Corp | 無線通信システム、基地局、移動局、送信制御方法及びプログラム格納媒体 |
KR100440182B1 (ko) | 2001-09-29 | 2004-07-14 | 삼성전자주식회사 | 음영지역에서의 퀵페이징 방법 |
RU2207723C1 (ru) | 2001-10-01 | 2003-06-27 | Военный университет связи | Способ распределения ресурсов в системе электросвязи с множественным доступом |
US7218906B2 (en) | 2001-10-04 | 2007-05-15 | Wisconsin Alumni Research Foundation | Layered space time processing in a multiple antenna system |
US7773699B2 (en) | 2001-10-17 | 2010-08-10 | Nortel Networks Limited | Method and apparatus for channel quality measurements |
JP3675433B2 (ja) | 2001-10-17 | 2005-07-27 | 日本電気株式会社 | 移動通信システム及び通信制御方法並びにそれに用いる基地局、移動局 |
US7548506B2 (en) | 2001-10-17 | 2009-06-16 | Nortel Networks Limited | System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design |
US7248559B2 (en) | 2001-10-17 | 2007-07-24 | Nortel Networks Limited | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
KR100533205B1 (ko) | 2001-10-17 | 2005-12-05 | 닛본 덴끼 가부시끼가이샤 | 이동 통신 시스템, 통신 제어 방법, 이것에 사용되는기지국 및 이동국 |
US7349667B2 (en) | 2001-10-19 | 2008-03-25 | Texas Instruments Incorporated | Simplified noise estimation and/or beamforming for wireless communications |
KR100452639B1 (ko) | 2001-10-20 | 2004-10-14 | 한국전자통신연구원 | 위성 이동 통신 시스템에서 공통 패킷 채널 접속 방법 |
KR100547847B1 (ko) | 2001-10-26 | 2006-01-31 | 삼성전자주식회사 | 이동통신 시스템에서 역방향 링크의 제어 장치 및 방법 |
US20030086393A1 (en) | 2001-11-02 | 2003-05-08 | Subramanian Vasudevan | Method for allocating wireless communication resources |
US7164649B2 (en) | 2001-11-02 | 2007-01-16 | Qualcomm, Incorporated | Adaptive rate control for OFDM communication system |
US20030125040A1 (en) | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication system |
US6909707B2 (en) | 2001-11-06 | 2005-06-21 | Motorola, Inc. | Method and apparatus for pseudo-random noise offset reuse in a multi-sector CDMA system |
US7453801B2 (en) | 2001-11-08 | 2008-11-18 | Qualcomm Incorporated | Admission control and resource allocation in a communication system supporting application flows having quality of service requirements |
CA2463752C (en) | 2001-11-13 | 2012-09-11 | Telcordia Technologies, Inc. | Method and system for spectrally compatible remote terminal adsl deployment |
GB2382265B (en) | 2001-11-14 | 2004-06-09 | Toshiba Res Europ Ltd | Emergency rescue aid |
SE0103853D0 (sv) | 2001-11-15 | 2001-11-15 | Ericsson Telefon Ab L M | Method and system of retransmission |
JP3637965B2 (ja) | 2001-11-22 | 2005-04-13 | 日本電気株式会社 | 無線通信システム |
TW595857U (en) | 2001-11-29 | 2004-06-21 | Us | 091219345 |
JP3756110B2 (ja) | 2001-11-29 | 2006-03-15 | シャープ株式会社 | 無線通信装置 |
JP3895165B2 (ja) | 2001-12-03 | 2007-03-22 | 株式会社エヌ・ティ・ティ・ドコモ | 通信制御システム、通信制御方法、通信基地局及び移動端末 |
US7154936B2 (en) | 2001-12-03 | 2006-12-26 | Qualcomm, Incorporated | Iterative detection and decoding for a MIMO-OFDM system |
ATE438978T1 (de) | 2001-12-03 | 2009-08-15 | Nokia Corp | Auf richtlinien basierende mechanismen zur auswahl von zugriffs-routern und mobilkontext |
US6799043B2 (en) | 2001-12-04 | 2004-09-28 | Qualcomm, Incorporated | Method and apparatus for a reverse link supplemental channel scheduling |
JP3955463B2 (ja) | 2001-12-05 | 2007-08-08 | ソフトバンクテレコム株式会社 | 直交周波数分割多重通信システム |
US20030112745A1 (en) | 2001-12-17 | 2003-06-19 | Xiangyang Zhuang | Method and system of operating a coded OFDM communication system |
US7054301B1 (en) | 2001-12-31 | 2006-05-30 | Arraycomm, Llc. | Coordinated hopping in wireless networks using adaptive antenna arrays |
US7020110B2 (en) | 2002-01-08 | 2006-03-28 | Qualcomm Incorporated | Resource allocation for MIMO-OFDM communication systems |
JP3914203B2 (ja) | 2002-01-10 | 2007-05-16 | 富士通株式会社 | Ofdmシステムにおけるパイロット多重方法及びofdm受信方法 |
DE10240138A1 (de) | 2002-01-18 | 2003-08-14 | Siemens Ag | Dynamische Zuordnung von Funkressourcen in einem Funk-Kommunikationssystem |
US6954622B2 (en) | 2002-01-29 | 2005-10-11 | L-3 Communications Corporation | Cooperative transmission power control method and system for CDMA communication systems |
US7006557B2 (en) * | 2002-01-31 | 2006-02-28 | Qualcomm Incorporated | Time tracking loop for diversity pilots |
US20030142648A1 (en) | 2002-01-31 | 2003-07-31 | Samsung Electronics Co., Ltd. | System and method for providing a continuous high speed packet data handoff |
JP2003235072A (ja) | 2002-02-06 | 2003-08-22 | Ntt Docomo Inc | 無線リソース割当て方法、無線リソース割当て装置及び移動通信システム |
US7031742B2 (en) | 2002-02-07 | 2006-04-18 | Qualcomm Incorporation | Forward and reverse link power control of serving and non-serving base stations in a wireless communication system |
GB2386513B (en) | 2002-02-07 | 2004-08-25 | Samsung Electronics Co Ltd | Apparatus and method for transmitting/receiving serving hs-scch set information in an hsdpa communication system |
RU2237379C2 (ru) | 2002-02-08 | 2004-09-27 | Самсунг Электроникс | Способ формирования диаграммы направленности адаптивной антенной решетки базовой станции и устройство для его реализации (варианты) |
IL151937A0 (en) | 2002-02-13 | 2003-07-31 | Witcom Ltd | Near-field spatial multiplexing |
US7009500B2 (en) | 2002-02-13 | 2006-03-07 | Ford Global Technologies, Llc | Method for operating a pre-crash sensing system in a vehicle having a countermeasure system using stereo cameras |
WO2003069832A1 (de) | 2002-02-13 | 2003-08-21 | Siemens Aktiengesellschaft | Methode zum beamforming eines mehrnutzempfängers mit kanalschätzung |
US7050759B2 (en) | 2002-02-19 | 2006-05-23 | Qualcomm Incorporated | Channel quality feedback mechanism and method |
JP2003249907A (ja) | 2002-02-22 | 2003-09-05 | Hitachi Kokusai Electric Inc | Ofdm方式の伝送装置 |
US6862271B2 (en) | 2002-02-26 | 2005-03-01 | Qualcomm Incorporated | Multiple-input, multiple-output (MIMO) systems with multiple transmission modes |
US6636568B2 (en) | 2002-03-01 | 2003-10-21 | Qualcomm | Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system |
US7099299B2 (en) | 2002-03-04 | 2006-08-29 | Agency For Science, Technology And Research | CDMA system with frequency domain equalization |
US7039356B2 (en) | 2002-03-12 | 2006-05-02 | Blue7 Communications | Selecting a set of antennas for use in a wireless communication system |
KR100464014B1 (ko) | 2002-03-21 | 2004-12-30 | 엘지전자 주식회사 | 다중 입출력 이동 통신 시스템에서의 폐루프 신호 처리 방법 |
US7197084B2 (en) | 2002-03-27 | 2007-03-27 | Qualcomm Incorporated | Precoding for a multipath channel in a MIMO system |
JP2003292667A (ja) | 2002-03-29 | 2003-10-15 | Jsr Corp | 架橋発泡用熱可塑性エラストマー組成物、成形品の製造方法、および成形品 |
US6741587B2 (en) | 2002-04-02 | 2004-05-25 | Nokia Corporation | Inter-frequency measurements with MIMO terminals |
US6850741B2 (en) | 2002-04-04 | 2005-02-01 | Agency For Science, Technology And Research | Method for selecting switched orthogonal beams for downlink diversity transmission |
US7508804B2 (en) | 2002-04-05 | 2009-03-24 | Alcatel-Lucent Usa Inc. | Shared signaling for multiple user equipment |
KR100896682B1 (ko) | 2002-04-09 | 2009-05-14 | 삼성전자주식회사 | 송/수신 다중 안테나를 포함하는 이동 통신 장치 및 방법 |
BR0303345A (pt) | 2002-04-15 | 2004-08-10 | Matsushita Electric Ind Co Ltd | Aparelho de recepção e método de recepção |
US7522673B2 (en) | 2002-04-22 | 2009-04-21 | Regents Of The University Of Minnesota | Space-time coding using estimated channel information |
JP2003318857A (ja) | 2002-04-25 | 2003-11-07 | Mitsubishi Electric Corp | デジタル放送受信機 |
TWI242992B (en) | 2002-04-25 | 2005-11-01 | Raytheon Co | Dynamic wireless resource utilization |
US7161971B2 (en) * | 2002-04-29 | 2007-01-09 | Qualcomm, Incorporated | Sending transmission format information on dedicated channels |
US6839336B2 (en) | 2002-04-29 | 2005-01-04 | Qualcomm, Incorporated | Acknowledging broadcast transmissions |
US7170876B2 (en) | 2002-04-30 | 2007-01-30 | Qualcomm, Inc. | Outer-loop scheduling design for communication systems with channel quality feedback mechanisms |
US7170937B2 (en) * | 2002-05-01 | 2007-01-30 | Texas Instruments Incorporated | Complexity-scalable intra-frame prediction technique |
US6836670B2 (en) | 2002-05-09 | 2004-12-28 | Casabyte, Inc. | Method, apparatus and article to remotely associate wireless communications devices with subscriber identities and /or proxy wireless communications devices |
JP4334274B2 (ja) | 2002-05-16 | 2009-09-30 | 株式会社エヌ・ティ・ティ・ドコモ | マルチキャリア伝送用送信機及びマルチキャリア伝送方法 |
KR100689399B1 (ko) | 2002-05-17 | 2007-03-08 | 삼성전자주식회사 | 이동통신시스템에서 스마트 안테나의 순방향 송신빔 형성장치 및 방법 |
JP2003347985A (ja) | 2002-05-22 | 2003-12-05 | Fujitsu Ltd | 無線基地局装置及びその省電力方法 |
JP4067873B2 (ja) | 2002-05-24 | 2008-03-26 | 三菱電機株式会社 | 無線伝送装置 |
GB0212165D0 (en) * | 2002-05-27 | 2002-07-03 | Nokia Corp | A wireless system |
US6917602B2 (en) | 2002-05-29 | 2005-07-12 | Nokia Corporation | System and method for random access channel capture with automatic retransmission request |
US8699505B2 (en) | 2002-05-31 | 2014-04-15 | Qualcomm Incorporated | Dynamic channelization code allocation |
US7899067B2 (en) * | 2002-05-31 | 2011-03-01 | Cisco Technology, Inc. | Method and apparatus for generating and using enhanced tree bitmap data structures in determining a longest prefix match |
US7366223B1 (en) | 2002-06-06 | 2008-04-29 | Arraycomm, Llc | Modifying hopping sequences in wireless networks |
KR100548311B1 (ko) | 2002-06-07 | 2006-02-02 | 엘지전자 주식회사 | 이동 통신 시스템에서의 송신 다이버시티 장치와 방법 |
AU2003237377A1 (en) | 2002-06-07 | 2003-12-22 | Nokia Corporation | Apparatus and an associated method, by which to facilitate scheduling of data communications ina radio communications system |
US7184713B2 (en) * | 2002-06-20 | 2007-02-27 | Qualcomm, Incorporated | Rate control for multi-channel communication systems |
JP3751265B2 (ja) | 2002-06-20 | 2006-03-01 | 松下電器産業株式会社 | 無線通信システムおよびスケジューリング方法 |
US7095709B2 (en) | 2002-06-24 | 2006-08-22 | Qualcomm, Incorporated | Diversity transmission modes for MIMO OFDM communication systems |
US7613248B2 (en) | 2002-06-24 | 2009-11-03 | Qualcomm Incorporated | Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems |
US7483408B2 (en) | 2002-06-26 | 2009-01-27 | Nortel Networks Limited | Soft handoff method for uplink wireless communications |
ATE308172T1 (de) | 2002-06-27 | 2005-11-15 | Siemens Ag | Anordnung und verfahren zur datenübertragung in einem mehrfacheingabe mehrfachausgabe funkkommunikationssystem |
DK1520360T3 (da) | 2002-06-27 | 2007-04-30 | Koninkl Philips Electronics Nv | Måling af kanalkarakteristikker i et kommunikationssystem |
US7551546B2 (en) * | 2002-06-27 | 2009-06-23 | Nortel Networks Limited | Dual-mode shared OFDM methods/transmitters, receivers and systems |
US20040077379A1 (en) | 2002-06-27 | 2004-04-22 | Martin Smith | Wireless transmitter, transceiver and method |
US7372911B1 (en) | 2002-06-28 | 2008-05-13 | Arraycomm, Llc | Beam forming and transmit diversity in a multiple array radio communications system |
US7043274B2 (en) | 2002-06-28 | 2006-05-09 | Interdigital Technology Corporation | System for efficiently providing coverage of a sectorized cell for common and dedicated channels utilizing beam forming and sweeping |
KR100640470B1 (ko) | 2002-06-29 | 2006-10-30 | 삼성전자주식회사 | 패킷 서비스 통신 시스템에서 전송 안테나 다이버시티방식을 사용하여 데이터를 전송 장치 및 방법 |
CN1219372C (zh) | 2002-07-08 | 2005-09-14 | 华为技术有限公司 | 一种实现多媒体广播和多播业务的传输方法 |
KR100630112B1 (ko) | 2002-07-09 | 2006-09-27 | 삼성전자주식회사 | 이동통신시스템의 적응형 채널 추정장치 및 방법 |
US7243150B2 (en) | 2002-07-10 | 2007-07-10 | Radwin Ltd. | Reducing the access delay for transmitting processed data over transmission data |
US20040017785A1 (en) | 2002-07-16 | 2004-01-29 | Zelst Allert Van | System for transporting multiple radio frequency signals of a multiple input, multiple output wireless communication system to/from a central processing base station |
WO2004008671A1 (ja) | 2002-07-16 | 2004-01-22 | Matsushita Electric Industrial Co., Ltd. | 通信方法およびそれを用いた送信装置と受信装置 |
CN1682507A (zh) | 2002-07-17 | 2005-10-12 | 索马网络公司 | 具有扰码的通信系统中的频域均衡 |
EP1525704A1 (en) | 2002-07-17 | 2005-04-27 | Koninklijke Philips Electronics N.V. | Time-frequency interleaved mc-cdma for quasi-synchronous systems |
TWI279101B (en) | 2002-07-18 | 2007-04-11 | Interdigital Tech Corp | A method for reassigning codes of an orthogonal variable spreading factor code tree in a code division multiple access communication system |
US7020446B2 (en) | 2002-07-31 | 2006-03-28 | Mitsubishi Electric Research Laboratories, Inc. | Multiple antennas at transmitters and receivers to achieving higher diversity and data rates in MIMO systems |
JP4022744B2 (ja) | 2002-08-01 | 2007-12-19 | 日本電気株式会社 | 移動通信システム及びベストセル変更方法並びにそれに用いる基地局制御装置 |
US7072296B2 (en) | 2002-08-02 | 2006-07-04 | Nms Communications Corporation | Methods and apparatus for network signal aggregation and bandwidth reduction |
JP4047655B2 (ja) | 2002-08-07 | 2008-02-13 | 京セラ株式会社 | 無線通信システム |
US6788963B2 (en) | 2002-08-08 | 2004-09-07 | Flarion Technologies, Inc. | Methods and apparatus for operating mobile nodes in multiple a states |
US7418241B2 (en) | 2002-08-09 | 2008-08-26 | Qualcomm Incorporated | System and techniques for enhancing the reliability of feedback in a wireless communications system |
US7558193B2 (en) | 2002-08-12 | 2009-07-07 | Starent Networks Corporation | Redundancy in voice and data communications systems |
US7180627B2 (en) * | 2002-08-16 | 2007-02-20 | Paxar Corporation | Hand-held portable printer with RFID read/write capability |
JP3999605B2 (ja) | 2002-08-23 | 2007-10-31 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局、移動通信システム及び通信方法 |
US7050405B2 (en) | 2002-08-23 | 2006-05-23 | Qualcomm Incorporated | Method and system for a data transmission in a communication system |
DE10238796B4 (de) | 2002-08-23 | 2006-09-14 | Siemens Ag | Verfahren zur Richtungsbestimmung der Position einer Mobilstation relativ zu einer Basisstation, Mobilfunksystem sowie Einrichtung zur Richtungsbestimmung |
US6985498B2 (en) * | 2002-08-26 | 2006-01-10 | Flarion Technologies, Inc. | Beacon signaling in a wireless system |
US6940917B2 (en) | 2002-08-27 | 2005-09-06 | Qualcomm, Incorporated | Beam-steering and beam-forming for wideband MIMO/MISO systems |
JP2004096142A (ja) | 2002-08-29 | 2004-03-25 | Hitachi Kokusai Electric Inc | 地区エリアポーリング方式 |
US7167916B2 (en) | 2002-08-30 | 2007-01-23 | Unisys Corporation | Computer OS dispatcher operation with virtual switching queue and IP queues |
KR100831987B1 (ko) | 2002-08-30 | 2008-05-23 | 삼성전자주식회사 | 다중 사용자를 위한 다중 안테나를 이용한 송수신 장치 |
US7519032B2 (en) | 2002-09-04 | 2009-04-14 | Koninklijke Philips Electronics N.V. | Apparatus and method for providing QoS service schedule and bandwidth allocation to a wireless station |
IL151644A (en) | 2002-09-05 | 2008-11-26 | Fazan Comm Llc | Allocation of radio resources in a cdma 2000 cellular system |
US7227854B2 (en) * | 2002-09-06 | 2007-06-05 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting CQI information in a CDMA communication system employing an HSDPA scheme |
US7260153B2 (en) | 2002-09-09 | 2007-08-21 | Mimopro Ltd. | Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels |
US6776165B2 (en) | 2002-09-12 | 2004-08-17 | The Regents Of The University Of California | Magnetic navigation system for diagnosis, biopsy and drug delivery vehicles |
WO2004028037A1 (ja) | 2002-09-20 | 2004-04-01 | Mitsubishi Denki Kabushiki Kaisha | 無線通信システム |
US7209712B2 (en) | 2002-09-23 | 2007-04-24 | Qualcomm, Incorporated | Mean square estimation of channel quality measure |
GB0222555D0 (en) | 2002-09-28 | 2002-11-06 | Koninkl Philips Electronics Nv | Packet data transmission system |
KR100933155B1 (ko) | 2002-09-30 | 2009-12-21 | 삼성전자주식회사 | 주파수분할다중접속 이동통신시스템에서 가상 셀의 자원할당장치 및 방법 |
US7317680B2 (en) | 2002-10-01 | 2008-01-08 | Nortel Networks Limited | Channel mapping for OFDM |
US7412212B2 (en) | 2002-10-07 | 2008-08-12 | Nokia Corporation | Communication system |
JP4602641B2 (ja) | 2002-10-18 | 2010-12-22 | 株式会社エヌ・ティ・ティ・ドコモ | 信号伝送システム、信号伝送方法及び送信機 |
KR100461547B1 (ko) | 2002-10-22 | 2004-12-16 | 한국전자통신연구원 | 디에스/시디엠에이 미모 안테나 시스템에서 보다 나은수신 다이버시티 이득을 얻기 위한 전송 시스템 |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US7477618B2 (en) | 2002-10-25 | 2009-01-13 | Qualcomm Incorporated | Method and apparatus for stealing power or code for data channel operations |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8218609B2 (en) | 2002-10-25 | 2012-07-10 | Qualcomm Incorporated | Closed-loop rate control for a multi-channel communication system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
WO2004038972A1 (en) | 2002-10-26 | 2004-05-06 | Electronics And Telecommunications Research Institute | Frequency hopping ofdma method using symbols of comb pattern |
US7023880B2 (en) | 2002-10-28 | 2006-04-04 | Qualcomm Incorporated | Re-formatting variable-rate vocoder frames for inter-system transmissions |
US6928062B2 (en) | 2002-10-29 | 2005-08-09 | Qualcomm, Incorporated | Uplink pilot and signaling transmission in wireless communication systems |
US7042857B2 (en) | 2002-10-29 | 2006-05-09 | Qualcom, Incorporated | Uplink pilot and signaling transmission in wireless communication systems |
AU2003290543A1 (en) | 2002-10-29 | 2004-05-25 | Nokia Corporation | Low complexity beamformers for multiple transmit and receive antennas |
US7197689B2 (en) | 2002-10-30 | 2007-03-27 | Nxp B.V. | Trellis-based receiver |
JP2004153676A (ja) | 2002-10-31 | 2004-05-27 | Mitsubishi Electric Corp | 通信装置、送信機および受信機 |
US6963959B2 (en) | 2002-10-31 | 2005-11-08 | International Business Machines Corporation | Storage system and method for reorganizing data to improve prefetch effectiveness and reduce seek distance |
JP2004158901A (ja) | 2002-11-01 | 2004-06-03 | Kddi Corp | Ofdm及びmc−cdmaを用いる送信装置、システム及び方法 |
US7680507B2 (en) | 2002-11-04 | 2010-03-16 | Alcatel-Lucent Usa Inc. | Shared control and signaling channel for users subscribing to data services in a communication system |
JP4095881B2 (ja) | 2002-11-13 | 2008-06-04 | 株式会社 サンウェイ | 道路路面計画の評価方法 |
DE10254384B4 (de) | 2002-11-17 | 2005-11-17 | Siemens Ag | Bidirektionales Signalverarbeitungsverfahren für ein MIMO-System mit einer rangadaptiven Anpassung der Datenübertragungsrate |
AU2003280851A1 (en) | 2002-11-18 | 2004-06-15 | Sharp Kabushiki Kaisha | Network relay device, network relay program, and recording medium containing the network relay program |
JP4084639B2 (ja) | 2002-11-19 | 2008-04-30 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信における受付制御方法、移動通信システム、移動局、受付制御装置及び受付制御用プログラム |
US20040098505A1 (en) | 2002-11-20 | 2004-05-20 | Clemmensen Daniel G. | Forwarding system with multiple logical sub-system functionality |
JP3796212B2 (ja) | 2002-11-20 | 2006-07-12 | 松下電器産業株式会社 | 基地局装置及び送信割り当て制御方法 |
KR100479864B1 (ko) | 2002-11-26 | 2005-03-31 | 학교법인 중앙대학교 | 이동 통신 시스템에서의 하향링크 신호의 구성 방법과동기화 방법 및 그 장치 그리고 이를 이용한 셀 탐색 방법 |
CN101505539B (zh) | 2002-12-04 | 2015-09-09 | 美商内数位科技公司 | 信道品质指示器的可靠性侦测及外回路功率控制的应用 |
JP4350491B2 (ja) | 2002-12-05 | 2009-10-21 | パナソニック株式会社 | 無線通信システム、無線通信方法、及び無線通信装置 |
US8179833B2 (en) | 2002-12-06 | 2012-05-15 | Qualcomm Incorporated | Hybrid TDM/OFDM/CDM reverse link transmission |
US7027539B2 (en) | 2002-12-09 | 2006-04-11 | Broadcom Corporation | Pipeline architecture for multi-slot wireless link processing |
KR100507519B1 (ko) | 2002-12-13 | 2005-08-17 | 한국전자통신연구원 | Ofdma 기반 셀룰러 시스템의 하향링크를 위한 신호구성 방법 및 장치 |
US7508798B2 (en) | 2002-12-16 | 2009-03-24 | Nortel Networks Limited | Virtual mimo communication system |
KR100552669B1 (ko) | 2002-12-26 | 2006-02-20 | 한국전자통신연구원 | 층적 공간-시간 구조의 검파기를 갖는 다중 입출력시스템에 적용되는 적응 변복조 장치 및 그 방법 |
US6904550B2 (en) | 2002-12-30 | 2005-06-07 | Motorola, Inc. | Velocity enhancement for OFDM systems |
KR100606008B1 (ko) | 2003-01-04 | 2006-07-26 | 삼성전자주식회사 | 부호 분할 다중 접속 통신 시스템에서 역방향 데이터재전송 요청 송수신 장치 및 방법 |
JP4098096B2 (ja) | 2003-01-06 | 2008-06-11 | 三菱電機株式会社 | スペクトル拡散受信装置 |
CN1302671C (zh) | 2003-01-07 | 2007-02-28 | 华为技术有限公司 | 一种第三方为接收方接收多媒体短消息付费的方法 |
US7280467B2 (en) | 2003-01-07 | 2007-10-09 | Qualcomm Incorporated | Pilot transmission schemes for wireless multi-carrier communication systems |
US8400979B2 (en) | 2003-01-07 | 2013-03-19 | Qualcomm Incorporated | Forward link handoff for wireless communication systems with OFDM forward link and CDMA reverse link |
JP4139230B2 (ja) | 2003-01-15 | 2008-08-27 | 松下電器産業株式会社 | 送信装置及び送信方法 |
US7346018B2 (en) | 2003-01-16 | 2008-03-18 | Qualcomm, Incorporated | Margin control in a data communication system |
CN100417269C (zh) | 2003-01-20 | 2008-09-03 | 中兴通讯股份有限公司 | 智能天线波束切换方法 |
KR100580244B1 (ko) | 2003-01-23 | 2006-05-16 | 삼성전자주식회사 | 무선랜상의 핸드오프 방법 |
WO2004068721A2 (en) | 2003-01-28 | 2004-08-12 | Celletra Ltd. | System and method for load distribution between base station sectors |
JP4276009B2 (ja) | 2003-02-06 | 2009-06-10 | 株式会社エヌ・ティ・ティ・ドコモ | 移動局、基地局、無線伝送プログラム、及び無線伝送方法 |
JP4514463B2 (ja) | 2003-02-12 | 2010-07-28 | パナソニック株式会社 | 送信装置及び無線通信方法 |
JP3740471B2 (ja) | 2003-02-13 | 2006-02-01 | 株式会社東芝 | Ofdm受信装置、半導体集積回路及びofdm受信方法 |
EP1593246A1 (en) | 2003-02-14 | 2005-11-09 | DoCoMo Communications Laboratories Europe GmbH | Two-dimensional channel estimation for multicarrier multiple input multiple outpout communication systems |
RU2368106C2 (ru) | 2003-02-18 | 2009-09-20 | Квэлкомм Инкорпорейтед | Планируемая и автономная передача и подтверждение приема |
US7660282B2 (en) | 2003-02-18 | 2010-02-09 | Qualcomm Incorporated | Congestion control in a wireless data network |
US8391249B2 (en) | 2003-02-18 | 2013-03-05 | Qualcomm Incorporated | Code division multiplexing commands on a code division multiplexed channel |
US7155236B2 (en) | 2003-02-18 | 2006-12-26 | Qualcomm Incorporated | Scheduled and autonomous transmission and acknowledgement |
US7813322B2 (en) | 2003-02-19 | 2010-10-12 | Qualcomm Incorporated | Efficient automatic repeat request methods and apparatus |
MXPA05008892A (es) | 2003-02-19 | 2006-05-25 | Qualcomm Flarion Tech | Codificacion de superposicion controlada en sistemas de comunicacion de usuarios multiples. |
US9544860B2 (en) | 2003-02-24 | 2017-01-10 | Qualcomm Incorporated | Pilot signals for use in multi-sector cells |
EP1600012A1 (en) | 2003-02-24 | 2005-11-30 | Floyd Backes | Wireless access protocol system and method |
KR100539230B1 (ko) | 2003-02-26 | 2005-12-27 | 삼성전자주식회사 | 다양한 규격의 신호를 송수신 처리하는 물리층 장치, 이를구비한 무선 랜 시스템 및 그 무선 랜 방법 |
JP2004260658A (ja) | 2003-02-27 | 2004-09-16 | Matsushita Electric Ind Co Ltd | 無線lan装置 |
CN1754393B (zh) | 2003-02-27 | 2011-06-08 | 美商内数位科技公司 | 实施快速动态频道配置无线资源管理程序的方法 |
WO2004077777A1 (en) | 2003-02-28 | 2004-09-10 | Nortel Networks Limited | Sub-carrier allocation for ofdm |
KR100547758B1 (ko) | 2003-02-28 | 2006-01-31 | 삼성전자주식회사 | 초광대역 통신 시스템의 프리앰블 송수신 장치 및 방법 |
US6843820B2 (en) * | 2003-03-04 | 2005-01-18 | 3M Innovative Properties Company | Filter assembly |
US20040179480A1 (en) | 2003-03-13 | 2004-09-16 | Attar Rashid Ahmed | Method and system for estimating parameters of a link for data transmission in a communication system |
US7746816B2 (en) | 2003-03-13 | 2010-06-29 | Qualcomm Incorporated | Method and system for a power control in a communication system |
US6927728B2 (en) | 2003-03-13 | 2005-08-09 | Motorola, Inc. | Method and apparatus for multi-antenna transmission |
US20040181569A1 (en) | 2003-03-13 | 2004-09-16 | Attar Rashid Ahmed | Method and system for a data transmission in a communication system |
US7130580B2 (en) | 2003-03-20 | 2006-10-31 | Lucent Technologies Inc. | Method of compensating for correlation between multiple antennas |
US7016319B2 (en) * | 2003-03-24 | 2006-03-21 | Motorola, Inc. | Method and apparatus for reducing co-channel interference in a communication system |
SE527445C2 (sv) | 2003-03-25 | 2006-03-07 | Telia Ab | Lägesanpassat skyddsintervall för OFDM-kommunikation |
JP4162522B2 (ja) | 2003-03-26 | 2008-10-08 | 三洋電機株式会社 | 無線基地装置、送信指向性制御方法、および送信指向性制御プログラム |
US20040192386A1 (en) | 2003-03-26 | 2004-09-30 | Naveen Aerrabotu | Method and apparatus for multiple subscriber identities in a mobile communication device |
JP4181906B2 (ja) | 2003-03-26 | 2008-11-19 | 富士通株式会社 | 送信機及び受信機 |
JP4218387B2 (ja) | 2003-03-26 | 2009-02-04 | 日本電気株式会社 | 無線通信システム、基地局及びそれらに用いる無線リンク品質情報補正方法並びにそのプログラム |
US7233634B1 (en) | 2003-03-27 | 2007-06-19 | Nortel Networks Limited | Maximum likelihood decoding |
CN100558095C (zh) | 2003-03-27 | 2009-11-04 | 株式会社Ntt都科摩 | 估计多个信道的设备和方法 |
GB2400271B (en) | 2003-04-02 | 2005-03-02 | Matsushita Electric Ind Co Ltd | Dynamic resource allocation in packet data transfer |
US7085574B2 (en) | 2003-04-15 | 2006-08-01 | Qualcomm, Incorporated | Grant channel assignment |
KR20050119143A (ko) | 2003-04-21 | 2005-12-20 | 미쓰비시덴키 가부시키가이샤 | 무선통신장치, 송신장치, 수신장치 및 무선통신시스템 |
US7142864B2 (en) | 2003-04-23 | 2006-11-28 | Qualcomm, Incorporated | Methods and apparatus of enhancing performance in wireless communication systems |
US7640373B2 (en) | 2003-04-25 | 2009-12-29 | Motorola, Inc. | Method and apparatus for channel quality feedback within a communication system |
KR100942645B1 (ko) | 2003-04-29 | 2010-02-17 | 엘지전자 주식회사 | 이동통신 시스템에서의 신호전송 방법 및 장치 |
US6824416B2 (en) | 2003-04-30 | 2004-11-30 | Agilent Technologies, Inc. | Mounting arrangement for plug-in modules |
US7013143B2 (en) | 2003-04-30 | 2006-03-14 | Motorola, Inc. | HARQ ACK/NAK coding for a communication device during soft handoff |
US20040219919A1 (en) | 2003-04-30 | 2004-11-04 | Nicholas Whinnett | Management of uplink scheduling modes in a wireless communication system |
US6993342B2 (en) | 2003-05-07 | 2006-01-31 | Motorola, Inc. | Buffer occupancy used in uplink scheduling for a communication device |
US6882855B2 (en) | 2003-05-09 | 2005-04-19 | Motorola, Inc. | Method and apparatus for CDMA soft handoff for dispatch group members |
US7254158B2 (en) | 2003-05-12 | 2007-08-07 | Qualcomm Incorporated | Soft handoff with interference cancellation in a wireless frequency hopping communication system |
US7177297B2 (en) | 2003-05-12 | 2007-02-13 | Qualcomm Incorporated | Fast frequency hopping with a code division multiplexed pilot in an OFDMA system |
US6950319B2 (en) | 2003-05-13 | 2005-09-27 | Delta Electronics, Inc. | AC/DC flyback converter |
US7545867B1 (en) | 2003-05-14 | 2009-06-09 | Marvell International, Ltd. | Adaptive channel bandwidth selection for MIMO wireless systems |
US7181196B2 (en) | 2003-05-15 | 2007-02-20 | Lucent Technologies Inc. | Performing authentication in a communications system |
JP2006526353A (ja) | 2003-05-15 | 2006-11-16 | エルジー エレクトロニクス インコーポレイティド | 無線通信のためのチャネル化コードの割り当て方法及び装置 |
KR100526542B1 (ko) | 2003-05-15 | 2005-11-08 | 삼성전자주식회사 | 이동 통신 시스템에서 다중안테나를 사용하는송신다이버시티 방식을 사용하여 데이터를 송수신하는장치 및 방법 |
US20040228313A1 (en) | 2003-05-16 | 2004-11-18 | Fang-Chen Cheng | Method of mapping data for uplink transmission in communication systems |
WO2004105272A1 (ja) | 2003-05-20 | 2004-12-02 | Fujitsu Limited | 移動通信システムにおけるアプリケーションハンドオーバ方法並びに同移動通信システムに使用される移動管理ノード及び移動ノード |
US7454510B2 (en) | 2003-05-29 | 2008-11-18 | Microsoft Corporation | Controlled relay of media streams across network perimeters |
US7366137B2 (en) | 2003-05-31 | 2008-04-29 | Qualcomm Incorporated | Signal-to-noise estimation in wireless communication devices with receive diversity |
US8018902B2 (en) * | 2003-06-06 | 2011-09-13 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and apparatus for channel quality indicator determination |
US7079870B2 (en) | 2003-06-09 | 2006-07-18 | Ipr Licensing, Inc. | Compensation techniques for group delay effects in transmit beamforming radio communication |
WO2004114549A1 (en) | 2003-06-13 | 2004-12-29 | Nokia Corporation | Enhanced data only code division multiple access (cdma) system |
KR100547734B1 (ko) | 2003-06-13 | 2006-01-31 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 이동 통신시스템에서 매체 접속 제어 계층의 동작 상태 제어 방법 |
KR100539947B1 (ko) | 2003-06-18 | 2005-12-28 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서기지국 구분을 위한 파일럿 패턴 송수신 장치 및 방법 |
US7236747B1 (en) | 2003-06-18 | 2007-06-26 | Samsung Electronics Co., Ltd. (SAIT) | Increasing OFDM transmit power via reduction in pilot tone |
JP4099191B2 (ja) | 2003-06-22 | 2008-06-11 | 株式会社エヌ・ティ・ティ・ドコモ | チャネル推定装置およびチャネル推定方法 |
KR20050000709A (ko) | 2003-06-24 | 2005-01-06 | 삼성전자주식회사 | 다중 접속 방식을 사용하는 통신 시스템의 데이터 송수신장치 및 방법 |
US7394865B2 (en) | 2003-06-25 | 2008-07-01 | Nokia Corporation | Signal constellations for multi-carrier systems |
US7433661B2 (en) | 2003-06-25 | 2008-10-07 | Lucent Technologies Inc. | Method for improved performance and reduced bandwidth channel state information feedback in communication systems |
NZ526669A (en) * | 2003-06-25 | 2006-03-31 | Ind Res Ltd | Narrowband interference suppression for OFDM systems |
ATE354211T1 (de) * | 2003-06-26 | 2007-03-15 | Mitsubishi Electric Corp | Verbesserte kugeldekodierung von in einem telekommunikationssystem gesendeten symbolen |
JP3746280B2 (ja) | 2003-06-27 | 2006-02-15 | 株式会社東芝 | 通信方法、通信システム及び通信装置 |
US7257408B2 (en) | 2003-06-30 | 2007-08-14 | Nec Corporation | Radio communication system and transmission mode selecting method |
US7522919B2 (en) | 2003-07-14 | 2009-04-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Enhancements to periodic silences in wireless communication systems |
US7313126B2 (en) | 2003-07-31 | 2007-12-25 | Samsung Electronics Co., Ltd. | Control system and multiple access method in wireless communication system |
US8140980B2 (en) * | 2003-08-05 | 2012-03-20 | Verizon Business Global Llc | Method and system for providing conferencing services |
CA2533322C (en) | 2003-08-05 | 2012-05-01 | Telecom Italia S.P.A. | Method for providing extra-traffic paths with connection protection in a communication network, related network and computer program product therefor |
US7315527B2 (en) * | 2003-08-05 | 2008-01-01 | Qualcomm Incorporated | Extended acknowledgement and rate control channel |
US7126928B2 (en) | 2003-08-05 | 2006-10-24 | Qualcomm Incorporated | Grant, acknowledgement, and rate control active sets |
US7969857B2 (en) * | 2003-08-07 | 2011-06-28 | Nortel Networks Limited | OFDM system and method employing OFDM symbols with known or information-containing prefixes |
US7460494B2 (en) | 2003-08-08 | 2008-12-02 | Intel Corporation | Adaptive signaling in multiple antenna systems |
CN1833387B (zh) | 2003-08-12 | 2016-03-02 | 知识产权之桥一号有限责任公司 | 无线通信装置以及导频码元传输方法 |
AU2003265480A1 (en) | 2003-08-13 | 2005-03-10 | Flarion Technologies, Inc. | Methods and apparatus of power control in wireless communication systems |
DE60306519T2 (de) | 2003-08-14 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd., Kadoma | Synchronisation von Basisstationen während Soft-Handover |
CN1284795C (zh) | 2003-08-15 | 2006-11-15 | 上海师范大学 | 磁性纳米粒子核酸分离器、及其制法和应用 |
RU2235429C1 (ru) | 2003-08-15 | 2004-08-27 | Федеральное государственное унитарное предприятие "Воронежский научно-исследовательский институт связи" | Способ частотно-временной синхронизации системы связи и устройство для его осуществления |
US7257167B2 (en) | 2003-08-19 | 2007-08-14 | The University Of Hong Kong | System and method for multi-access MIMO channels with feedback capacity constraint |
CN1853367B (zh) | 2003-08-20 | 2010-05-12 | 松下电器产业株式会社 | 无线通信装置和副载波分配方法 |
US6925145B2 (en) * | 2003-08-22 | 2005-08-02 | General Electric Company | High speed digital radiographic inspection of piping |
JP4194091B2 (ja) | 2003-09-02 | 2008-12-10 | ソニー・エリクソン・モバイルコミュニケーションズ株式会社 | 無線通信システムおよび無線通信装置 |
US7221680B2 (en) | 2003-09-02 | 2007-05-22 | Qualcomm Incorporated | Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system |
US20050063298A1 (en) | 2003-09-02 | 2005-03-24 | Qualcomm Incorporated | Synchronization in a broadcast OFDM system using time division multiplexed pilots |
US7400856B2 (en) | 2003-09-03 | 2008-07-15 | Motorola, Inc. | Method and apparatus for relay facilitated communications |
US20050047517A1 (en) | 2003-09-03 | 2005-03-03 | Georgios Giannakis B. | Adaptive modulation for multi-antenna transmissions with partial channel knowledge |
US7724827B2 (en) | 2003-09-07 | 2010-05-25 | Microsoft Corporation | Multi-layer run level encoding and decoding |
US8908496B2 (en) | 2003-09-09 | 2014-12-09 | Qualcomm Incorporated | Incremental redundancy transmission in a MIMO communication system |
US7356073B2 (en) | 2003-09-10 | 2008-04-08 | Nokia Corporation | Method and apparatus providing an advanced MIMO receiver that includes a signal-plus-residual-interference (SPRI) detector |
US6917821B2 (en) | 2003-09-23 | 2005-07-12 | Qualcomm, Incorporated | Successive interference cancellation receiver processing with selection diversity |
US20050068921A1 (en) | 2003-09-29 | 2005-03-31 | Jung-Tao Liu | Multiplexing of physical channels on the uplink |
EP1668835A1 (en) | 2003-09-30 | 2006-06-14 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for congestion control in high speed wireless packet data networks |
KR100950668B1 (ko) | 2003-09-30 | 2010-04-02 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 통신 시스템에서 업링크 파일럿 신호 송수신 장치 및 방법 |
JP2005110130A (ja) | 2003-10-01 | 2005-04-21 | Samsung Electronics Co Ltd | 共通チャネル伝送システム、共通チャネル伝送方法及び通信プログラム |
US7230942B2 (en) | 2003-10-03 | 2007-06-12 | Qualcomm, Incorporated | Method of downlink resource allocation in a sectorized environment |
EP1521414B1 (en) | 2003-10-03 | 2008-10-29 | Kabushiki Kaisha Toshiba | Method and apparatus for sphere decoding |
US7039370B2 (en) | 2003-10-16 | 2006-05-02 | Flarion Technologies, Inc. | Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems |
US7242722B2 (en) | 2003-10-17 | 2007-07-10 | Motorola, Inc. | Method and apparatus for transmission and reception within an OFDM communication system |
US7120395B2 (en) | 2003-10-20 | 2006-10-10 | Nortel Networks Limited | MIMO communications |
ATE368977T1 (de) | 2003-10-21 | 2007-08-15 | Alcatel Lucent | Verfahren zur zuordnung der unterträger und zur auswahl des modulationsschemas in einem drahtlosen mehrträgerübertragungssystem |
US7508748B2 (en) | 2003-10-24 | 2009-03-24 | Qualcomm Incorporated | Rate selection for a multi-carrier MIMO system |
KR20050040988A (ko) | 2003-10-29 | 2005-05-04 | 삼성전자주식회사 | 주파수도약 직교 주파수 분할 다중화 기반 셀룰러시스템을 위한 통신방법 |
KR100957415B1 (ko) | 2003-10-31 | 2010-05-11 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서 기지국 구분을 위한 파일럿 신호 송수신 장치 및 방법 |
KR101023330B1 (ko) | 2003-11-05 | 2011-03-18 | 한국과학기술원 | 무선 통신 시스템에서 서비스 품질을 보장하기 위한 복합자동 재전송 요구 방법 |
US7664533B2 (en) | 2003-11-10 | 2010-02-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for a multi-beam antenna system |
KR100981554B1 (ko) | 2003-11-13 | 2010-09-10 | 한국과학기술원 | 다중 송수신 안테나들을 구비하는 이동통신시스템에서,송신 안테나들을 그룹핑하여 신호를 전송하는 방법 |
EP1533950A1 (en) | 2003-11-21 | 2005-05-25 | Sony International (Europe) GmbH | Method for connecting a mobile terminal to a wireless communication system, wireless communication system and mobile terminal for a wireless communication system |
US7356000B2 (en) | 2003-11-21 | 2008-04-08 | Motorola, Inc. | Method and apparatus for reducing call setup delay |
JP3908723B2 (ja) | 2003-11-28 | 2007-04-25 | Tdk株式会社 | 誘電体磁器組成物の製造方法 |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
JP2005167502A (ja) | 2003-12-01 | 2005-06-23 | Ntt Docomo Inc | 無線通信システム、送信無線局の制御装置及び受信無線局の制御装置、並びにサブキャリア選択方法 |
TWI232040B (en) | 2003-12-03 | 2005-05-01 | Chung Shan Inst Of Science | CDMA transmitting and receiving apparatus with multiply applied interface functions and a method thereof |
KR20050053907A (ko) | 2003-12-03 | 2005-06-10 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 서브 캐리어 할당 방법 |
US20070110172A1 (en) | 2003-12-03 | 2007-05-17 | Australian Telecommunications Cooperative Research | Channel estimation for ofdm systems |
JP4188372B2 (ja) | 2003-12-05 | 2008-11-26 | 日本電信電話株式会社 | 無線通信装置、無線通信方法、及び無線通信システム |
CA2545275A1 (en) | 2003-12-05 | 2005-06-16 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting data by selected eigenvector in closed loop mimo mobile communication system |
US7145940B2 (en) | 2003-12-05 | 2006-12-05 | Qualcomm Incorporated | Pilot transmission schemes for a multi-antenna system |
EP1542488A1 (en) | 2003-12-12 | 2005-06-15 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for allocating a pilot signal adapted to the channel characteristics |
KR100856227B1 (ko) | 2003-12-15 | 2008-09-03 | 삼성전자주식회사 | 이동통신시스템에서의 송/수신장치 및 방법 |
KR100560386B1 (ko) | 2003-12-17 | 2006-03-13 | 한국전자통신연구원 | 무선 통신 시스템의 상향 링크에서 코히어런트 검출을위한 직교주파수 분할 다중 접속 방식의 송수신 장치 및그 방법 |
EP1545082A3 (en) | 2003-12-17 | 2005-08-03 | Kabushiki Kaisha Toshiba | Signal decoding methods and apparatus |
US7302009B2 (en) | 2003-12-17 | 2007-11-27 | Qualcomm Incorporated | Broadcast transmission with spatial spreading in a multi-antenna communication system |
KR20050063826A (ko) | 2003-12-19 | 2005-06-28 | 엘지전자 주식회사 | 무선통신 시스템의 무선자원 할당방법 |
KR100507541B1 (ko) | 2003-12-19 | 2005-08-09 | 삼성전자주식회사 | 직교주파수분할다중접속 시스템에서의 데이터 및 파일롯할당 방법 과 그를 이용한 송신 방법 및 그 장치, 수신방법과 그 장치 |
US7181170B2 (en) * | 2003-12-22 | 2007-02-20 | Motorola Inc. | Apparatus and method for adaptive broadcast transmission |
ATE491269T1 (de) | 2003-12-22 | 2010-12-15 | Ericsson Telefon Ab L M | Verfahren zur bestimmung von sendegewichten |
KR100943572B1 (ko) | 2003-12-23 | 2010-02-24 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 시스템에서 주파수재사용율을 고려한 적응적 부채널 할당 장치 및 방법 |
US7352819B2 (en) | 2003-12-24 | 2008-04-01 | Intel Corporation | Multiantenna communications apparatus, methods, and system |
JP2005197772A (ja) | 2003-12-26 | 2005-07-21 | Toshiba Corp | アダプティブアレイアンテナ装置 |
WO2005062729A2 (en) | 2003-12-27 | 2005-07-14 | Electronics And Telecommunications Research Institute | A mimo-ofdm system using eigenbeamforming method |
US7489621B2 (en) | 2003-12-30 | 2009-02-10 | Alexander A Maltsev | Adaptive puncturing technique for multicarrier systems |
WO2005069538A1 (en) | 2004-01-07 | 2005-07-28 | Deltel, Inc./Pbnext | Method and apparatus for telecommunication system |
CN1642051A (zh) | 2004-01-08 | 2005-07-20 | 电子科技大学 | 一种获取最优导引符号功率的方法 |
WO2005065062A2 (en) | 2004-01-09 | 2005-07-21 | Lg Electronics Inc. | Packet transmission method |
US7289585B2 (en) | 2004-01-12 | 2007-10-30 | Intel Corporation | Multicarrier receivers and methods for separating transmitted signals in a multiple antenna system |
JP4167183B2 (ja) | 2004-01-14 | 2008-10-15 | 株式会社国際電気通信基礎技術研究所 | アレーアンテナの制御装置 |
TR200504827T2 (tr) | 2004-01-20 | 2007-01-22 | Qualcomm Incorporated | Eşzamanlı yayın/çoğa gönderim iletişimi. |
US20050159162A1 (en) | 2004-01-20 | 2005-07-21 | Samsung Electronics Co., Ltd. | Method for transmitting data in mobile communication network |
BRPI0506904A (pt) | 2004-01-20 | 2007-06-26 | Lg Electronics Inc | método para transmitir / receber um sinal em um sistema mimo |
US8611283B2 (en) | 2004-01-28 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus of using a single channel to provide acknowledgement and assignment messages |
ATE429203T1 (de) | 2004-02-05 | 2009-05-15 | Motorika Ltd | Rehabilitation mit musik |
US8144735B2 (en) | 2004-02-10 | 2012-03-27 | Qualcomm Incorporated | Transmission of signaling information for broadcast and multicast services |
GB2412541B (en) | 2004-02-11 | 2006-08-16 | Samsung Electronics Co Ltd | Method of operating TDD/virtual FDD hierarchical cellular telecommunication system |
KR100827105B1 (ko) | 2004-02-13 | 2008-05-02 | 삼성전자주식회사 | 광대역 무선 통신 시스템에서 고속 레인징을 통한 빠른핸드오버 수행 방법 및 장치 |
KR100804651B1 (ko) | 2004-02-13 | 2008-02-20 | 포스데이타 주식회사 | 멀티 캐리어 통신 시스템에서의 적응적 전송 및 피드백방법 및 장치 |
US7564906B2 (en) | 2004-02-17 | 2009-07-21 | Nokia Siemens Networks Oy | OFDM transceiver structure with time-domain scrambling |
EP1763932A4 (en) | 2004-02-17 | 2010-01-06 | Huawei Tech Co Ltd | MULTIPLEX PROCESS IN A COMMUNICATION SYSTEM |
US8169889B2 (en) * | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
JP2005236678A (ja) | 2004-02-19 | 2005-09-02 | Toyota Motor Corp | 移動体用受信装置 |
WO2005086500A1 (en) | 2004-02-27 | 2005-09-15 | Nokia Corporation | Constrained optimization based mimo lmmse-sic receiver for cdma downlink |
US7421041B2 (en) | 2004-03-01 | 2008-09-02 | Qualcomm, Incorporated | Iterative channel and interference estimation and decoding |
US20050195886A1 (en) | 2004-03-02 | 2005-09-08 | Nokia Corporation | CPICH processing for SINR estimation in W-CDMA system |
KR101084113B1 (ko) | 2004-03-05 | 2011-11-17 | 엘지전자 주식회사 | 이동통신의 핸드오버에 적용되는 서비스 정보 전달 방법 |
US7290195B2 (en) | 2004-03-05 | 2007-10-30 | Microsoft Corporation | Adaptive acknowledgment delay |
US20050201296A1 (en) | 2004-03-15 | 2005-09-15 | Telefonaktiebolaget Lm Ericsson (Pu | Reduced channel quality feedback |
CN1951050B (zh) | 2004-03-15 | 2013-10-30 | 苹果公司 | 用于具有四根发射天线的ofdm系统的导频设计 |
US7706350B2 (en) | 2004-03-19 | 2010-04-27 | Qualcomm Incorporated | Methods and apparatus for flexible spectrum allocation in communication systems |
US20050207367A1 (en) | 2004-03-22 | 2005-09-22 | Onggosanusi Eko N | Method for channel quality indicator computation and feedback in a multi-carrier communications system |
US7907898B2 (en) | 2004-03-26 | 2011-03-15 | Qualcomm Incorporated | Asynchronous inter-piconet routing |
JP2005284751A (ja) | 2004-03-30 | 2005-10-13 | Fujitsu Ltd | 論理検証装置、論理検証方法および論理検証プログラム |
JP4288368B2 (ja) | 2004-04-09 | 2009-07-01 | Okiセミコンダクタ株式会社 | 受信制御方法および無線lan装置 |
US7684507B2 (en) | 2004-04-13 | 2010-03-23 | Intel Corporation | Method and apparatus to select coding mode |
US7047006B2 (en) | 2004-04-28 | 2006-05-16 | Motorola, Inc. | Method and apparatus for transmission and reception of narrowband signals within a wideband communication system |
KR100594084B1 (ko) | 2004-04-30 | 2006-06-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 수신기의 채널 추정 방법 및 채널추정기 |
GB0409704D0 (en) | 2004-04-30 | 2004-06-02 | Nokia Corp | A method for verifying a first identity and a second identity of an entity |
US20050249266A1 (en) | 2004-05-04 | 2005-11-10 | Colin Brown | Multi-subband frequency hopping communication system and method |
US7411898B2 (en) | 2004-05-10 | 2008-08-12 | Infineon Technologies Ag | Preamble generator for a multiband OFDM transceiver |
JP4447372B2 (ja) | 2004-05-13 | 2010-04-07 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信システム、無線通信装置、無線受信装置、無線通信方法及びチャネル推定方法 |
KR20050109789A (ko) | 2004-05-17 | 2005-11-22 | 삼성전자주식회사 | 공간분할다중화/다중입력다중출력 시스템에서의 빔포밍 방법 |
US7157351B2 (en) * | 2004-05-20 | 2007-01-02 | Taiwan Semiconductor Manufacturing Co., Ltd. | Ozone vapor clean method |
US20050259005A1 (en) | 2004-05-20 | 2005-11-24 | Interdigital Technology Corporation | Beam forming matrix-fed circular array system |
US8000377B2 (en) | 2004-05-24 | 2011-08-16 | General Dynamics C4 Systems, Inc. | System and method for variable rate multiple access short message communications |
JP4398791B2 (ja) | 2004-05-25 | 2010-01-13 | 株式会社エヌ・ティ・ティ・ドコモ | 送信機および送信制御方法 |
US7551564B2 (en) | 2004-05-28 | 2009-06-23 | Intel Corporation | Flow control method and apparatus for single packet arrival on a bidirectional ring interconnect |
KR100754794B1 (ko) | 2004-05-29 | 2007-09-03 | 삼성전자주식회사 | 이동통신시스템에서 셀 식별 코드 송수신 장치 및 방법 |
US7437164B2 (en) | 2004-06-08 | 2008-10-14 | Qualcomm Incorporated | Soft handoff for reverse link in a wireless communication system with frequency reuse |
US8619907B2 (en) | 2004-06-10 | 2013-12-31 | Agere Systems, LLC | Method and apparatus for preamble training in a multiple antenna communication system |
JP2005352205A (ja) | 2004-06-10 | 2005-12-22 | Fujinon Corp | 照明装置 |
US7769107B2 (en) | 2004-06-10 | 2010-08-03 | Intel Corporation | Semi-blind analog beamforming for multiple-antenna systems |
US7773950B2 (en) | 2004-06-16 | 2010-08-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Benign interference suppression for received signal quality estimation |
US7724777B2 (en) | 2004-06-18 | 2010-05-25 | Qualcomm Incorporated | Quasi-orthogonal multiplexing for a multi-carrier communication system |
US8068530B2 (en) | 2004-06-18 | 2011-11-29 | Qualcomm Incorporated | Signal acquisition in a wireless communication system |
US7599327B2 (en) | 2004-06-24 | 2009-10-06 | Motorola, Inc. | Method and apparatus for accessing a wireless communication system |
KR101053610B1 (ko) | 2004-06-25 | 2011-08-03 | 엘지전자 주식회사 | Ofdm/ofdma 시스템의 무선자원 할당 방법 |
US7299048B2 (en) | 2004-06-25 | 2007-11-20 | Samsung Electronics Co., Ltd. | System and method for performing soft handover in broadband wireless access communication system |
CN1998247B (zh) | 2004-06-30 | 2012-05-30 | 桥扬科技有限公司 | 用于多载波无线系统中功率控制的方法和装置 |
US8000268B2 (en) * | 2004-06-30 | 2011-08-16 | Motorola Mobility, Inc. | Frequency-hopped IFDMA communication system |
US7426426B2 (en) | 2004-07-02 | 2008-09-16 | Vibration Research Corporation | System and method for simultaneously controlling spectrum and kurtosis of a random vibration |
WO2006002550A1 (en) | 2004-07-07 | 2006-01-12 | Nortel Networks Limited | System and method for mapping symbols for mimo transmission |
JP4181093B2 (ja) | 2004-07-16 | 2008-11-12 | 株式会社東芝 | 無線通信システム |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
US7676007B1 (en) | 2004-07-21 | 2010-03-09 | Jihoon Choi | System and method for interpolation based transmit beamforming for MIMO-OFDM with partial feedback |
US7567621B2 (en) | 2004-07-21 | 2009-07-28 | Qualcomm Incorporated | Capacity based rank prediction for MIMO design |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US8477710B2 (en) * | 2004-07-21 | 2013-07-02 | Qualcomm Incorporated | Method of providing a gap indication during a sticky assignment |
US10355825B2 (en) | 2004-07-21 | 2019-07-16 | Qualcomm Incorporated | Shared signaling channel for a communication system |
US7257406B2 (en) | 2004-07-23 | 2007-08-14 | Qualcomm, Incorporated | Restrictive reuse set management |
TW200620924A (en) | 2004-08-03 | 2006-06-16 | Agency Science Tech & Res | Method for transmitting a digital data stream, transmitter, method for receiving a digital data stream and receiver |
JP2006050326A (ja) * | 2004-08-05 | 2006-02-16 | Toshiba Corp | 情報処理装置および同装置のシーンチェンジ検出方法 |
US7428426B2 (en) | 2004-08-06 | 2008-09-23 | Qualcomm, Inc. | Method and apparatus for controlling transmit power in a wireless communications device |
US7499393B2 (en) | 2004-08-11 | 2009-03-03 | Interdigital Technology Corporation | Per stream rate control (PSRC) for improving system efficiency in OFDM-MIMO communication systems |
US20060040655A1 (en) | 2004-08-12 | 2006-02-23 | Lg Electronics Inc. | Timing of point-to-multipoint control channel information |
US20060218459A1 (en) | 2004-08-13 | 2006-09-28 | David Hedberg | Coding systems and methods |
CN1296682C (zh) | 2004-08-17 | 2007-01-24 | 广东省基础工程公司 | 一种隧道过江施工中用于监测河床沉降的装置及其方法 |
EP1628425B1 (en) | 2004-08-17 | 2012-12-26 | Samsung Electronics Co., Ltd. | Apparatus and method for space-time-frequency block coding |
US20060039332A1 (en) * | 2004-08-17 | 2006-02-23 | Kotzin Michael D | Mechanism for hand off using subscriber detection of synchronized access point beacon transmissions |
US7899497B2 (en) | 2004-08-18 | 2011-03-01 | Ruckus Wireless, Inc. | System and method for transmission parameter control for an antenna apparatus with selectable elements |
US7336727B2 (en) | 2004-08-19 | 2008-02-26 | Nokia Corporation | Generalized m-rank beamformers for MIMO systems using successive quantization |
US20060039344A1 (en) | 2004-08-20 | 2006-02-23 | Lucent Technologies, Inc. | Multiplexing scheme for unicast and broadcast/multicast traffic |
US7852746B2 (en) | 2004-08-25 | 2010-12-14 | Qualcomm Incorporated | Transmission of signaling in an OFDM-based system |
KR100856249B1 (ko) | 2004-08-26 | 2008-09-03 | 삼성전자주식회사 | 무선 통신 시스템에서 초기 동작 모드 검출 방법 |
JP4494134B2 (ja) | 2004-09-01 | 2010-06-30 | Kddi株式会社 | 無線通信システム、中継局装置および基地局装置 |
US7894548B2 (en) | 2004-09-03 | 2011-02-22 | Qualcomm Incorporated | Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system |
US7978778B2 (en) | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
US7362822B2 (en) | 2004-09-08 | 2008-04-22 | Intel Corporation | Recursive reduction of channel state feedback |
US7613423B2 (en) * | 2004-09-10 | 2009-11-03 | Samsung Electronics Co., Ltd. | Method of creating active multipaths for mimo wireless systems |
GB0420164D0 (en) | 2004-09-10 | 2004-10-13 | Nokia Corp | A scheduler |
KR100715910B1 (ko) | 2004-09-20 | 2007-05-08 | 삼성전자주식회사 | 다중 접속 방식을 사용하는 이동 통신 시스템의 셀 탐색장치 및 방법 |
RU2285388C2 (ru) | 2004-09-27 | 2006-10-20 | Оао "Онежский Тракторный Завод" | Машина для бесчокерной трелевки деревьев |
US7924935B2 (en) | 2004-09-30 | 2011-04-12 | Nortel Networks Limited | Channel sounding in OFDMA system |
US8325863B2 (en) * | 2004-10-12 | 2012-12-04 | Qualcomm Incorporated | Data detection and decoding with considerations for channel estimation errors due to guard subbands |
US7969858B2 (en) | 2004-10-14 | 2011-06-28 | Qualcomm Incorporated | Wireless terminal methods and apparatus for use in wireless communications systems supporting different size frequency bands |
US7636328B2 (en) | 2004-10-20 | 2009-12-22 | Qualcomm Incorporated | Efficient transmission of signaling using channel constraints |
US7616955B2 (en) | 2004-11-12 | 2009-11-10 | Broadcom Corporation | Method and system for bits and coding assignment utilizing Eigen beamforming with fixed rates for closed loop WLAN |
US20060089104A1 (en) | 2004-10-27 | 2006-04-27 | Nokia Corporation | Method for improving an HS-DSCH transport format allocation |
US7139328B2 (en) | 2004-11-04 | 2006-11-21 | Motorola, Inc. | Method and apparatus for closed loop data transmission |
US7627051B2 (en) | 2004-11-08 | 2009-12-01 | Samsung Electronics Co., Ltd. | Method of maximizing MIMO system performance by joint optimization of diversity and spatial multiplexing |
PT1829262T (pt) | 2004-11-16 | 2018-05-15 | Qualcomm Inc | Controlo de velocidade em ciclo fechado para um sistema de comunicações mimo |
US20060104333A1 (en) | 2004-11-18 | 2006-05-18 | Motorola, Inc. | Acknowledgment for a time division channel |
US20060111054A1 (en) | 2004-11-22 | 2006-05-25 | Interdigital Technology Corporation | Method and system for selecting transmit antennas to reduce antenna correlation |
US7512096B2 (en) | 2004-11-24 | 2009-03-31 | Alcatel-Lucent Usa Inc. | Communicating data between an access point and multiple wireless devices over a link |
US7593473B2 (en) | 2004-12-01 | 2009-09-22 | Bae Systems Information And Electronic Systems Integration Inc. | Tree structured multicarrier multiple access systems |
US7822128B2 (en) | 2004-12-03 | 2010-10-26 | Intel Corporation | Multiple antenna multicarrier transmitter and method for adaptive beamforming with transmit-power normalization |
WO2006062356A1 (en) | 2004-12-08 | 2006-06-15 | Electronics And Telecommunications Research Institute | Transmitter, receiver and method for controlling multiple input multiple output system |
US7543197B2 (en) | 2004-12-22 | 2009-06-02 | Qualcomm Incorporated | Pruned bit-reversal interleaver |
US7940710B2 (en) | 2004-12-22 | 2011-05-10 | Qualcomm Incorporated | Methods and apparatus for efficient paging in a wireless communication system |
US8238923B2 (en) | 2004-12-22 | 2012-08-07 | Qualcomm Incorporated | Method of using shared resources in a communication system |
EP1834436A2 (en) | 2004-12-22 | 2007-09-19 | QUALCOMM Incorporated | Methods and apparatus for flexible hopping in a multiple-access communication network |
US8179876B2 (en) | 2004-12-22 | 2012-05-15 | Qualcomm Incorporated | Multiple modulation technique for use in a communication system |
US20060140289A1 (en) | 2004-12-27 | 2006-06-29 | Mandyam Giridhar D | Method and apparatus for providing an efficient pilot scheme for channel estimation |
CN1642335A (zh) | 2005-01-06 | 2005-07-20 | 东南大学 | 移动通信系统混合无线资源管理方法 |
US7778826B2 (en) | 2005-01-13 | 2010-08-17 | Intel Corporation | Beamforming codebook generation system and associated methods |
US8150442B2 (en) | 2005-01-18 | 2012-04-03 | Sharp Kabushiki Kaisha | Method and apparatus for controlling power of subcarriers in a wireless communication system |
JP2006211537A (ja) | 2005-01-31 | 2006-08-10 | Nec Corp | コード状態変更装置、コード状態変更方法、およびコード状態変更プログラム |
KR100966044B1 (ko) | 2005-02-24 | 2010-06-28 | 삼성전자주식회사 | 다중 셀 통신 시스템에서 주파수 자원 할당 시스템 및 방법 |
KR20060096365A (ko) | 2005-03-04 | 2006-09-11 | 삼성전자주식회사 | 다중 사용자 다중입력 다중출력(mu-mimo)통신시스템의 사용자 스케줄링 방법 |
US8135088B2 (en) * | 2005-03-07 | 2012-03-13 | Q1UALCOMM Incorporated | Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing |
US8095141B2 (en) * | 2005-03-09 | 2012-01-10 | Qualcomm Incorporated | Use of supplemental assignments |
US7720162B2 (en) * | 2005-03-10 | 2010-05-18 | Qualcomm Incorporated | Partial FFT processing and demodulation for a system with multiple subcarriers |
US20060203794A1 (en) | 2005-03-10 | 2006-09-14 | Qualcomm Incorporated | Systems and methods for beamforming in multi-input multi-output communication systems |
US9246560B2 (en) | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
US9154211B2 (en) | 2005-03-11 | 2015-10-06 | Qualcomm Incorporated | Systems and methods for beamforming feedback in multi antenna communication systems |
US7512412B2 (en) | 2005-03-15 | 2009-03-31 | Qualcomm, Incorporated | Power control and overlapping control for a quasi-orthogonal communication system |
US8446892B2 (en) | 2005-03-16 | 2013-05-21 | Qualcomm Incorporated | Channel structures for a quasi-orthogonal multiple-access communication system |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9461859B2 (en) | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US20090213950A1 (en) | 2005-03-17 | 2009-08-27 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9143305B2 (en) | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US8031583B2 (en) * | 2005-03-30 | 2011-10-04 | Motorola Mobility, Inc. | Method and apparatus for reducing round trip latency and overhead within a communication system |
US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
US7797018B2 (en) | 2005-04-01 | 2010-09-14 | Interdigital Technology Corporation | Method and apparatus for selecting a multi-band access point to associate with a multi-band mobile station |
US7711033B2 (en) | 2005-04-14 | 2010-05-04 | Telefonaktiebolaget Lm Ericsson (Publ) | SIR prediction method and apparatus |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
US9036538B2 (en) | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US7768979B2 (en) | 2005-05-18 | 2010-08-03 | Qualcomm Incorporated | Separating pilot signatures in a frequency hopping OFDM system by selecting pilot symbols at least hop away from an edge of a hop region |
US7916681B2 (en) | 2005-05-20 | 2011-03-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for communication channel error rate estimation |
US8077692B2 (en) | 2005-05-20 | 2011-12-13 | Qualcomm Incorporated | Enhanced frequency division multiple access for wireless communication |
US20070183303A1 (en) | 2005-05-26 | 2007-08-09 | Zhouyue Pi | Method and apparatus for specifying channel state information for multiple carriers |
JP4599228B2 (ja) | 2005-05-30 | 2010-12-15 | 株式会社日立製作所 | 無線送受信機 |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8842693B2 (en) | 2005-05-31 | 2014-09-23 | Qualcomm Incorporated | Rank step-down for MIMO SCW design employing HARQ |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
US8126066B2 (en) | 2005-06-09 | 2012-02-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Time and frequency channel estimation |
US7403470B2 (en) | 2005-06-13 | 2008-07-22 | Qualcomm Incorporated | Communications system, methods and apparatus |
EP1734773A1 (en) | 2005-06-14 | 2006-12-20 | Alcatel | A method for uplink interference coordination in single frequency networks, a base station a mobile terminal and a mobile network therefor |
JP4869724B2 (ja) | 2005-06-14 | 2012-02-08 | 株式会社エヌ・ティ・ティ・ドコモ | 送信装置、送信方法、受信装置及び受信方法 |
US20070071147A1 (en) | 2005-06-16 | 2007-03-29 | Hemanth Sampath | Pseudo eigen-beamforming with dynamic beam selection |
US8750908B2 (en) | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US8098667B2 (en) | 2005-06-16 | 2012-01-17 | Qualcomm Incorporated | Methods and apparatus for efficient providing of scheduling information |
US8503371B2 (en) * | 2005-06-16 | 2013-08-06 | Qualcomm Incorporated | Link assignment messages in lieu of assignment acknowledgement messages |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8254924B2 (en) | 2005-06-16 | 2012-08-28 | Qualcomm Incorporated | Method and apparatus for adaptive registration and paging area determination |
US8599945B2 (en) * | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
DE102005028179A1 (de) | 2005-06-17 | 2006-12-28 | Siemens Ag | Verfahren zum Verbindungsaufbau durch mobile Endgeräte in Kommunikationsnetzen mit variablen Bandbreiten |
EP1897245A4 (en) | 2005-06-20 | 2013-01-16 | Texas Instruments Inc | LOW UPLINK POWER SUPPLY CONTROL |
KR100606099B1 (ko) | 2005-06-22 | 2006-07-31 | 삼성전자주식회사 | 주파수 분할 다중 접속 방식시스템에서의 긍정 및 부정응답 채널을 설정하는 방법 및 장치 |
CA2612746A1 (en) * | 2005-07-04 | 2007-01-11 | Samsung Electronics Co., Ltd. | Position measuring system and method using wireless broadband (wibro) signal |
US8249192B2 (en) | 2005-07-18 | 2012-08-21 | Nokia Corporation | Techniques to transmit data rate control signals for multi-carrier wireless systems |
US20070025345A1 (en) | 2005-07-27 | 2007-02-01 | Bachl Rainer W | Method of increasing the capacity of enhanced data channel on uplink in a wireless communications systems |
US7403745B2 (en) | 2005-08-02 | 2008-07-22 | Lucent Technologies Inc. | Channel quality predictor and method of estimating a channel condition in a wireless communications network |
US20070183386A1 (en) | 2005-08-03 | 2007-08-09 | Texas Instruments Incorporated | Reference Signal Sequences and Multi-User Reference Signal Sequence Allocation |
US8885628B2 (en) * | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
EP2518909B1 (en) | 2005-08-18 | 2013-12-11 | Beceem Communications Inc. | Antenna virtualization in communication systems |
US7508842B2 (en) | 2005-08-18 | 2009-03-24 | Motorola, Inc. | Method and apparatus for pilot signal transmission |
WO2007024214A1 (en) | 2005-08-19 | 2007-03-01 | Mitsubishi Electric Research Laboratories | Optimal signaling and selection verification for transmit antenna selection with erroneous feedback |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US8331463B2 (en) | 2005-08-22 | 2012-12-11 | Qualcomm Incorporated | Channel estimation in communications |
RU2407179C2 (ru) | 2005-08-24 | 2010-12-20 | Квэлкомм Инкорпорейтед | Переменные интервалы времени передачи для системы радиосвязи |
US8644292B2 (en) * | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US20070047495A1 (en) * | 2005-08-29 | 2007-03-01 | Qualcomm Incorporated | Reverse link soft handoff in a wireless multiple-access communication system |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
DE102005041273B4 (de) * | 2005-08-31 | 2014-05-08 | Intel Mobile Communications GmbH | Verfahren zum rechnergestützten Bilden von Systeminformations-Medium-Zugriffs-Steuerungs-Protokollnachrichten, Medium-Zugriffs-Steuerungs-Einheit und Computerprogrammelement |
CN101258693B (zh) | 2005-09-21 | 2012-12-19 | Lg电子株式会社 | 用于在无线通信系统中分配反馈信息的方法 |
US8391254B2 (en) | 2005-10-06 | 2013-03-05 | Samsung Electronics Co., Ltd | Channel configuration and bandwidth allocation in multi-hop cellular communication networks |
WO2007045101A2 (en) * | 2005-10-21 | 2007-04-26 | Nortel Networks Limited | Multiplexing schemes for ofdma |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US7835460B2 (en) | 2005-10-27 | 2010-11-16 | Qualcomm Incorporated | Apparatus and methods for reducing channel estimation noise in a wireless transceiver |
US8134977B2 (en) | 2005-10-27 | 2012-03-13 | Qualcomm Incorporated | Tune-away protocols for wireless systems |
US8045512B2 (en) * | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US20070165738A1 (en) | 2005-10-27 | 2007-07-19 | Barriac Gwendolyn D | Method and apparatus for pre-coding for a mimo system |
US8649362B2 (en) | 2005-11-02 | 2014-02-11 | Texas Instruments Incorporated | Methods for determining the location of control channels in the uplink of communication systems |
WO2007053948A1 (en) | 2005-11-10 | 2007-05-18 | Nortel Networks Limited | Wireless relay network media access control layer control plane system and method |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
WO2007065272A1 (en) | 2005-12-08 | 2007-06-14 | Nortel Networks Limited | Resource assignment systems and methods |
US8437251B2 (en) | 2005-12-22 | 2013-05-07 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
US9148795B2 (en) | 2005-12-22 | 2015-09-29 | Qualcomm Incorporated | Methods and apparatus for flexible reporting of control information |
US9451491B2 (en) | 2005-12-22 | 2016-09-20 | Qualcomm Incorporated | Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system |
KR100793315B1 (ko) | 2005-12-31 | 2008-01-11 | 포스데이타 주식회사 | 다운링크 프리앰블을 이용한 반송파 신호 대 잡음비 측정장치 및 방법 |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
US7486408B2 (en) | 2006-03-21 | 2009-02-03 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method with reduced scribe lane usage for substrate measurement |
US20070242653A1 (en) | 2006-04-13 | 2007-10-18 | Futurewei Technologies, Inc. | Method and apparatus for sharing radio resources in an ofdma-based communication system |
EP1855424B1 (en) | 2006-05-12 | 2013-07-10 | Panasonic Corporation | Reservation of radio resources for users in a mobile communications system |
US7873002B2 (en) | 2006-09-19 | 2011-01-18 | Zte (Usa) Inc. | Frame structure for multi-hop relay in wireless communication systems |
US20080075094A1 (en) | 2006-09-26 | 2008-03-27 | Electronics And Telecommunications Research Institute | Method and apparatus for using and relaying frames over mobile multi-hop relay systems |
US20080108355A1 (en) | 2006-11-03 | 2008-05-08 | Fujitsu Limited | Centralized-scheduler relay station for mmr extended 802.16e system |
KR100949287B1 (ko) | 2007-01-25 | 2010-03-25 | 삼성전자주식회사 | 다중 홉 릴레이 방식을 사용하는 광대역 무선접속통신시스템에서 대역폭 요청을 처리하기 위한 장치 및 방법 |
US8259695B2 (en) | 2007-04-30 | 2012-09-04 | Alcatel Lucent | Method and apparatus for packet wireless telecommunications |
US8301078B2 (en) | 2007-07-13 | 2012-10-30 | Lg Electronics Inc. | Forwarding schemes for cooperative relay groups |
US8254487B2 (en) * | 2007-08-09 | 2012-08-28 | Samsung Electronics Co., Ltd. | Method and apparatus of codebook-based single-user closed-loop transmit beamforming (SU-CLTB) for OFDM wireless systems |
JP4294723B2 (ja) | 2007-08-28 | 2009-07-15 | パナソニック株式会社 | ネットワーク制御装置、方法、及びプログラム |
WO2009050794A1 (ja) | 2007-10-16 | 2009-04-23 | Fujitsu Limited | 中継局装置、端末局装置、無線通信システムおよび負荷分散方法 |
US8155013B2 (en) | 2007-11-02 | 2012-04-10 | Ntt Docomo, Inc. | Synchronized multi-link transmission in an ARQ-enabled multi-hop wireless network |
CN101431394B (zh) | 2007-11-05 | 2012-01-11 | 中兴通讯股份有限公司 | 下行隧道混合自动重传请求方法 |
US20090180459A1 (en) | 2008-01-16 | 2009-07-16 | Orlik Philip V | OFDMA Frame Structures for Uplinks in MIMO Networks |
US8355357B2 (en) | 2008-03-10 | 2013-01-15 | Samsung Electronics Co., Ltd. | Apparatus and method for admission control for service flow in broadband wireless access communication system using multi-hop relay scheme |
KR101400990B1 (ko) | 2008-04-03 | 2014-05-29 | 연세대학교 산학협력단 | 멀티 홉 통신 시스템에서의 중계기 및 상기 중계기의 동작방법 |
US8259659B2 (en) | 2008-07-03 | 2012-09-04 | Apple Inc. | Apparatus and methods for managing access and update requests in a wireless network |
WO2010017628A1 (en) | 2008-08-12 | 2010-02-18 | Nortel Networks Limited | Apparatus and method for enabling downlink transparent relay in a wireless communications network |
JP5223592B2 (ja) | 2008-10-28 | 2013-06-26 | アイコム株式会社 | 無線通信システム、無線通信方法、無線通信端末装置、中継装置、並びに、中継システム |
US8228862B2 (en) | 2008-12-03 | 2012-07-24 | Samsung Electronics Co., Ltd. | Method and system for reference signal pattern design |
US8238483B2 (en) | 2009-02-27 | 2012-08-07 | Marvell World Trade Ltd. | Signaling of dedicated reference signal (DRS) precoding granularity |
US20100232384A1 (en) | 2009-03-13 | 2010-09-16 | Qualcomm Incorporated | Channel estimation based upon user specific and common reference signals |
US8553711B2 (en) | 2009-03-19 | 2013-10-08 | Qualcomm Incorporated | Association and resource partitioning in a wireless network with relays |
US20120307668A1 (en) | 2010-02-16 | 2012-12-06 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and Devices Which Enable Considering a Number of Active User Stations Linked Via Relays When Allocating Radio Resources |
JP5172885B2 (ja) | 2010-04-05 | 2013-03-27 | 株式会社エヌ・ティ・ティ・ドコモ | 無線中継局装置、無線基地局装置及びリレー周波数割り当て方法 |
EP2567562B1 (en) | 2010-05-03 | 2014-03-12 | Telefonaktiebolaget L M Ericsson (publ) | Application of system information changes by relays |
CN102026313B (zh) | 2010-06-21 | 2012-03-21 | 华为技术有限公司 | 切换处理方法和设备 |
US8811306B2 (en) | 2010-06-22 | 2014-08-19 | Futurewei Technologies, Inc. | System and method for scheduling in a multi-hop environment |
JP2012044333A (ja) | 2010-08-16 | 2012-03-01 | Ntt Docomo Inc | 無線基地局装置及びリソース割り当て方法 |
US9160662B2 (en) | 2010-08-20 | 2015-10-13 | Google Technology Holdings LLC | Uplink buffer status reporting of relay stations in wireless networks |
US8817690B2 (en) | 2011-04-04 | 2014-08-26 | Qualcomm Incorporated | Method and apparatus for scheduling network traffic in the presence of relays |
KR200471652Y1 (ko) | 2013-08-07 | 2014-03-12 | 남경탁 | 의자 일체형 가구 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5887023A (en) * | 1995-11-29 | 1999-03-23 | Nec Corporation | Method and apparatus for a frequency hopping-spread spectrum communication system |
US6584140B1 (en) * | 1999-01-22 | 2003-06-24 | Systems Information And Electronic Systems Integration Inc. | Spectrum efficient fast frequency-hopped modem with coherent demodulation |
CN1267152A (zh) * | 1999-03-11 | 2000-09-20 | 朗迅科技公司 | 基于正交频分复用技术的扩频多址 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109075812A (zh) * | 2016-04-13 | 2018-12-21 | 高通股份有限公司 | Ofdma无线网络中的跳频 |
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