CN101124760A - 用于mimo设计的基于性能的秩预测 - Google Patents
用于mimo设计的基于性能的秩预测 Download PDFInfo
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Abstract
利用低复杂度MMSE接收机和秩预测的单码字(SCW)设计的性能类似于利用连续干扰抵消的多码字(MCW)设计。一种秩预测方法包括:计算与每个音调的多个层传输对应的多个MIMO信道矩阵;基于所述多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);对每个音调的SNR进行映射,以生成每个层传输的有效SNR;对于每个层传输,选择其SNR门限小于该层传输的有效SNR的最高的分组格式(PF);基于对于每个层传输所选择的最高的分组格式,最大化整体频谱效率;以及基于最大化整体频谱效率来选择秩。
Description
技术领域
[0001]本发明通常涉及通信,并且更具体地涉及用于确定经由多信道(例如多输入多输出(MIMO))正交频分复用(OFDM)通信系统传输的数据流的分配的技术。
背景技术
[0002]在无线通信系统中,来自发射机的RF调制信号可以经由多条传播路径到达接收机。由于诸如衰落和多径之类的多个因素,传播路径的特性通常随时间而变化。为了提供分集以抵消有害的路径效应并且改善性能,可以使用多个发射和接收天线。如果发射天线和接收天线之间的传播路径至少在一定程度上是线性独立的(即,在一条路径上的传输不是由其它路径上的传输的线性组合所组成),那么随着天线数量的增加,正确接收数据传输的可能性也增加。通常,随着发射和接收天线数量的增加,能够增加分集并改善性能。
[0003]多输入多输出(MIMO)通信系统使用多个(NT)发射天线和多个(NR)接收天线用于数据传输。可以把由NT个发射和NR个接收天线组成的MIMO信道分解成NS个独立的信道,其中NS≤min{NT,NR}。NS个独立信道中的每一个都可被称为MIMO信道的空间子信道(或传输信道),并对应于一个维数。如果使用了由该多个发射和接收天线创建的额外的维数,那么MIMO系统可以提供改善的性能(例如,传输容量增加)。
[0004]对满秩MIMO信道,其中NS=NT≤NR,可以从NT个发射天线中的每一个来传输独立数据流。该传输的数据流可以经历不同的信道环境(例如,不同的衰落和多经效应)并且对于给定量的发射功率可以获得不同的信干噪比(SNR)。此外,如果在接收机使用了连续干扰抵消处理以恢复发送的数据流(下面描述),那么取决于用于恢复这些数据流的具体顺序,这些数据流可以获得不同的SNR。因此,取决于不同的数据流所获得的SNR,不同的数据流可以支持不同的数据速率。由于信道条件通常随时间变化,每个数据流所支持的数据速率也随时间变化。
[0005]MIMO设计有两种操作模式——单码字(SCW)和多码字(MCW)。
[0006]在MCW模式中,发射机可以独立地,有可能以不同的速率,对在每个空间层上传输的数据进行编码。接收机使用连续干扰抵消(SIC)算法,其操作如下:对第一层进行解码,然后在重编码和用“估计的信道”乘以已编码的第一层之后,从接收的信号中减去第一层,然后对第二层进行解码,等等。这种“洋葱剥离”方法意味着每个连续解码的层经历信噪比(SNR)增加,并因此可以支持更高的速率。在没有错误传播的情况下,具有SIC的MCW设计能获得预期的容量。这种设计的缺点缘于“管理”每个空间层的速率的负担——(a)增加的CQI反馈(每层一个CQI);(b)增加的ACK/NACK消息传递(每层一个);(c)混合ARQ(HARQ)中的复杂化,因为每层可以在不同的传输终止;(d)SIC对于具有增加的多普勒以及/或者低SNR的信道估计误差的性能敏感性;以及(e)增加的解码等待时间要求,因为每个连续的层只有在其之前的层被解码后才能得以解码。
[0007]在常规的SWC模式设计中,发射机用“相同的数据速率”对在每个空间层上传输的数据进行编码。对每个音调(tone),接收机可以使用低复杂度线性接收机,例如最小均方差(MMSE)或零频率(ZF)接收机;或使用非线性接收机,例如QRM。
[0008]SCW设计克服了上述MCW设计的执行烦扰。SCW模式的缺点是,其不能在空间相关信道和具有高K因子的视距(LOS)信道中支持MCW速率。这两种情况都导致信道秩的损失,或者导致信道条件数增加和层间干扰增加。这显著地降低了每个空间层的有效SNR。因此降低了每层所支持的数据速率,从而降低了总的数据速率。
[0009]K因子是LOS信道功率和非LOS信道功率之间的比率。秩是具有非零能量的信道中的本征模的数量。条件数是MIMO信道的最大本征值与最小本征值之间的比率。
[0010]因此在本领域需要一种用于动态地分配经由多信道(例如多输入多输出(MIMO))正交频分复用(OFDM)通信系统传输的数据流的技术。
发明内容
[0011]一方面,一种秩预测方法,包括:计算与每个音调的以每种可能的复用次序所进行的多个传输对应的多个MIMO信道矩阵;基于多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);对每个音调的SNR进行映射,以生成每个可能复用顺序的有效SNR;对于每个层传输,选择SNR门限小于该层传输的有效SNR的最高分组格式(PF);从为每个层传输所选择的最高PF中选择绝对最高PF;以及基于所选择的绝对最高PF,来选择秩。
[0012]在另一方面,一种无线通信设备,包括:MIMO信道矩阵计算装置,用于计算与每个音调的多个层传输对应的多个MIMO信道矩阵;信噪比(SNR)计算装置,用于基于多个MIMO信道矩阵计算每个音调的多个SNR;映射装置,用于对每个音调的SNR进行映射,以生成每个层传输的有效SNR;最高分组格式(PF)选择装置,用于对于每个层传输,选择SNR门限小于该层传输的有效SNR的最高分组格式(PF);绝对最高PF选择装置,用于从对于每个层传输所选择的最高PF中选择绝对最高PF;以及秩选择装置,用于基于所选择的绝对最高PF,来选择秩。
[0013]在另一方面,一种被编程来执行秩预测方法的处理器,该方法包括:计算与每个音调的多个层传输对应的多个MIMO信道矩阵;基于多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);对每个音调的SNR进行映射,以生成每个层传输的有效SNR;对于每个层传输,选择SNR门限小于该层传输的有效SNR的最高的分组格式(PF);从对于每个层传输所选择的最高PF中选择绝对最高的PF;以及基于所选择的绝对最高PF,来选择秩。
[0014]另一方面,一种包含秩预测方法的计算机可读介质,所述方法包括:计算与每个音调的多个层传输对应的多个MIMO信道矩阵;基于多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);对每个音调的SNR进行映射,以生成每个层传输的有效SNR;对于每个层传输,选择SNR门限小于该层传输的有效SNR的最高的分组格式(PF);从对于每个层传输所选择的最高PF中选择绝对最高的PF;以及基于所选择的绝对最高PF,来选择秩。
[0015]以下,将进一步详细描述本发明的各种方面和各种实施例。
附图说明
[0016]通过以下所述的详细描述,并结合附图,本发明的特征和性质会变得更加明显,其中相同的参考标号始终一致地对应,其中:
[0017]图1示出了常规SCW发射机;
[0018]图2示出了根据一个实施例的具有秩预测的SCW发射机;
[0019]图3示出了根据一个实施例的循环复用,其中MT=4,M=2,B=1;
[0020]图4示出了根据一个实施例的块循环复用,其中MT=4,M=2,B=4;以及
[0021]图5示出了根据一个实施例的基于性能的秩预测的方框图。
具体实施方式
[0022]此处用词语“示例性的”来表示“用来作为示例、例子或例证”。此处所述的任何“示例性的”实施例或设计无须优选于或优于其它实施例或设计。
[0023]此处所述的基于性能的秩预测技术可以用于各种通信系统,例如码分复用(CDMA)系统、宽带CDMA(WCDMA)系统、直接序列CDMA(DS-CDMA)系统、时分复用(TDMA)系统、频分复用(FDMA)系统、高速下行分组接入(HSDPA)系统、基于正交频分复用(OFDM)的系统、正交频分多址(OFDM)系统、单输入单输出(SISO)系统、多输入多输出(MIMO)系统,等等。
[0024]OFDM是多载波调制技术,其把总的系统带宽有效地划分成多个(NF)正交子带。这些子带又被称为音调(tone)、子载波、仓(bin)和频率信道。通过OFDM,把每个子带关联到各自的子载波,其中可以用数据来调制该子载波。在每个OFDM符号周期中可以在NF个子带上发送多达NF个调制符号。在发送之前,使用NF点快速傅立叶反变换(IFFT)将这些调制符号变换到时域,以获得包括NF个码片的“变换的”符号。
[0025]SCW设计克服了MCW设计的缺点。然而,SCW模式不能在空间相关的信道或具有高K因子的视距(LOS)信道中支持MCW速率。这两种情况都导致信道秩的损失,或者导致信道条件数增加以及层间干扰增加。这显著地降低了每个空间层的有效SNR。因此降低了每层所支持的数据速率,从而降低了总的数据速率。
[0026]用于减小层间干扰的一种方法是降低在低秩的信道中传输的空间层的数量,并且折衷层间干扰和MIMO增益。例如,把传输层的数量从四降低到到三,即,把秩从从四减小到三,这样可以对这三层显著地增加有效SNR,并因此增加每层所支持的数据速率。净效应是,与四层传输相比,三层传输实际上可以具有更高的频谱效率。
[0027]在一个实施例中,SCW设计有效地折衷了层间干扰和MIMO增益,以最大化总的频谱效率。这是经由秩预测来获得的,其中接收机除了反馈载波质量与干扰比(CQI),还反馈最佳传输层数,以匹配信道的秩。
[0028]对本领域的技术人员来说,除了CQI,显然还可以使用其它质量指示符。
常规的SCW发射机
[0029]图1示出了常规的SCW发射机100。根据由速率预测算法112指定的分组格式(PF)108、110,对比特102进行turbo编码104和QAM映射106。该编码与单输入单输出(SISO)设计相同。然后把编码符号解复用114到MT个层116,然后把MT个层116空间映射118到MT个OFDM调制器120和天线122。然后按照与SISO相同的形式对每个发射天线进行OFDM处理,之后,信号进入MIMO无线信道。该速率预测算法使用每5毫秒来自接收机126的4比特CQI反馈124。CQI是在接收机测量的有效SNR/空间层的度量。按照确保每层的SNR相似的方式来进行空间映射。如上面所解释,在低秩的信道中,该设计的性能变坏。
具有秩预测的SCW发射机
[0030]根据一个实施例,描述了具有秩预测的单码字(SCW)设计。以下给出了鲁棒的秩预测算法。对于SNR<15dB(90%的用户),具有低复杂度MMSE接收机和秩预测的SCW设计的性能类似于具有连续干扰抵消(SIC)的多码字(MCW)设计。没有HARQ的情况下,SCW优于MCW,因为MCQ对信道估计误差更敏感。这些因素使得SCW对于MIMO有吸引力,因为其与MCW相比具有更小的实现复杂度和开销。
[0031]对于15和20dB之间的SNR(10%的用户),SCW和MCW之间的性能差距,对于低K信道是小于1.0dB,并且对于高K信道是2-5dB。对于高K信道,通过使用双极化的天线,高SNR时的性能恶化被降低到1-2dB。实际上,即使在高SNR时,SCW设计也不超出MCW设计两dB。在没有HARQ的情况下,在SNR<15dB时,由于SIC对信道估计误差的敏感度增加,MCW的性能比SCW差。
[0032]图2示出了根据一个实施例的具有秩预测的SCW发射机。根据由速率预测算法212指定的分组格式(PF)208、210,对比特202进行turbo编码204和QAM映射206。
[0033]在一个实施例中,随后把编码符号解复用214到M个流216或层(1≤M≤MT),其中M 228是由接收机226每5毫秒的反馈所指定的2比特整数1≤M≤MT,此外接收机226每5毫秒的反馈指定5比特CQI 224。然后把M个流216空间映射218到MT个OFDM调制器220和MT个天线222。
空间映射
[0034]空间映射器(预编码器)218是MT×M矩阵P(k),其对于每个OFDM音调k,把M个符号映射到MT个天线上。对于该预编码器有多种选择。考虑MR×MT MIMO信道H(k)。可以选择预编码器矩阵,使得等价的信道矩阵H(k)P(k)与H(k)相比具有改善的频率选择度。解码器可以利用改进的频率选择性来获得频率分集增益。
[0035]在一个实施例中,预编码器矩阵是以下置换矩阵:
其中∏(0),∏(1),.....,∏(MT-1)是从单位矩阵的M列导出的MT×M子置换矩阵,IMT×MT和B是用于控制等价信道的频率选择性的参数。
[0036]根据一个实施例,如果MT=4,M=2,那么
[0037]对于B=1,这导致如图3所示的具有两层的循环复用策略,其中垂直线的方块302对应于来自层1的符号,水平线的方块304对应于来自层2的符号。图3示出了MT=4,M=2,B=1时的循环复用。垂直轴306表示天线。水平轴308表示音调。
[0038]对于B=4,这导致如图4所示的具有两层的块循环复用策略,其中垂直线的方块402对应于来自层1的符号,水平线的方块404对应于来自层2的符号。图4示出了MT=4,M=2,B=4时的块循环复用。垂直轴406表示天线。水平轴408表示音调。
[0039]增加B导致等价信道的频率选择性减小,当使用弱码时,这是我们希望的情况。并且,参数B对信道交织器的选择敏感,因此稍后可以对参数B进行最优化。
[0040]循环复用改善了频率分集,而不考虑信道延迟扩展。在出现强turbo码的情况下,CM(其中M=1)的性能接近空时发射分集(STTD)。然而,对于非常高的PF或者对于使用弱卷积码的控制信道,STTD的性能可以显著地优于CM。
[0041]在一个实施例中,预编码器矩阵是如下的广义延迟分集矩阵:
[0042]其中ΘMT×M是从MT×M DFT矩阵的M列获得的MT×M子DFT矩阵,并且ΔMT×MT是MT×MT对角矩阵,其中通过给出矩阵的第(j,j)个项。
[0043]参数δ是延迟参数,其还控制信道的频率选择性,并且N是OFDM音调的数量。我们注意到,对M=1,上述预编码矩阵实现“纯”延迟分集。延迟分集的性能确实比循环复用(以及STTD)更差,并且其对于高PF在LOS信道条件下具有差的性能。使用延迟分集的唯一好处是,其对于高的移动性(>120千米每小时),在非常低的SNR(SNR<-5dB)时,获益于改善的SISO信道估计增益。在这些信道情况下,循环复用不能获益于SISO信道估计增益。
[0044]分组格式
[0045]当前的SISO设计使用频谱效率为[0.5,1,1.5,2.0,2.5,3.0,4.0]bps/Hz的7个PF。在使用一层传输的SCW设计中,这种频谱效率(SE)粒度是足够的。然而,当所有四个层都用来传输时,该频谱效率变为[2,4,6,8,10,12,16]bps/Hz,其中SE粒度在2-4bps/Hz数量级上。这种粗粒度的结果导致损失数据速率,因为这些用户被限制在以比他们可获得的SE低得多的数据速率来传输。注意到具有SIC的MCW设计没有这种间隔尺寸问题,因为可以独立地在每层调节速率,导致总体上更细的频谱效率间隔尺寸。
分组格式 | 调制 | 一帧后的码速率 | N帧传输后的每层频谱效率 | |||||
1 | 2 | 3 | 4 | 5 | 6 | |||
0 | 2 | 1/4 | 0.50 | 0.25 | 0.17 | 0.13 | 0.10 | 0.08 |
1 | 2 | 3/8 | 0.75 | 0.38 | 0.25 | 0.19 | 0.15 | 0.13 |
2 | 2 | 1/2 | 1.00 | 0.50 | 0.33 | 0.25 | 0.20 | 0.17 |
3 | 4 | 5/16 | 125 | 0.63 | 0.42 | 0.31 | 0.25 | 0.21 |
4 | 4 | 3/8 | 1.50 | 0.75 | 0.50 | 0.38 | 0.30 | 0.25 |
5 | 4 | 7/16 | 1.75 | 0.88 | 0.58 | 0.44 | 0.35 | 0.29 |
6 | 4 | 1/2 | 2.00 | 1.00 | 0.67 | 0.50 | 0.40 | 0.33 |
7 | 4 | 9/16 | 2.25 | 1.13 | 0.75 | 0.56 | 0.45 | 0.38 |
8 | 6 | 5/12 | 2.50 | 1.25 | 0.83 | 0.63 | 0.50 | 0.42 |
9 | 6 | 11/24 | 2.75 | 1.38 | 0.92 | 0.69 | 0.55 | 0.46 |
10 | 6 | 1/2 | 3.00 | 1.50 | 1.00 | 0.75 | 0.60 | 0.50 |
11 | 6 | 13/24 | 3.25 | 1.63 | 1.08 | 0.81 | 0.65 | 0.54 |
12 | 6 | 7/12 | 3.50 | 1.75 | 1.17 | 0.88 | 0.70 | 0.58 |
13 | 6 | 5/8 | 3.75 | 1.88 | 1.25 | 0.94 | 0.75 | 0.63 |
14 | 6 | 2/3 | 4.00 | 2.00 | 1.33 | 1.00 | 0.80 | 0.67 |
15 | 6 | 17/24 | 4.25 | 2.13 | 1.42 | 1.06 | 0.85 | 0.71 |
表1:具有秩预测的SCW设计的分组格式
[0046]表1示出了根据一个实施例的具有秩预测的SCW设计的分组格式。表1示出的PF的SE的目标是第一到第六传输。提供了16个PF以及相应的每层SE,该每层SE范围为0.5bps/Hz/层到4.25bps/Hz/层之间,其中对于第一传输具有0.25bps/Hz/层的增量。当把的三个传输作为目标时,最大可获得的每层SE是1.42bps/Hz/层。通过把第二传输作为目标,可以获得1.42bps/Hz/层到2.13bps/Hz/层之间的SE,并且通过把第一传输作为目标可以获得大于2.13bps/Hz/层的SE,这里HARQ效益减小。
[0047]在另一个实施例中,可以添加更多SE/层>4.25bps/Hz的PF#,从而可以通过把第三传输作为目标来获得更高的SE,并获益于HARQ增益。在这种情况下可以需要6比特CQI,以确保捕获该PF粒度。
基于性能的秩预测算法
[0048]图5示出了根据一个实施例的基于性能的秩预测的方块图。对第k个音调,把H(k)P1(k)502到H(k)P4(k)508分别输入至MMSE(1)512到MMSE(4)518。MMSE(1)512到MMSE(4)518分别产生SNR1(k)522到SNR4(k)528。把SNR1(k)522到SNR4(k)528分别输入至Cap映射器532到Cap映射器538。Cap映射器532到Cap映射器538分别产生EffSNR1 542到EffSNR4 548。把EffSNR1 542到EffSNR4 548分别输入至PF选择552到PF选择558。把分组差错率(PER)为1%时的SNR门限分别输入至PF选择552到PF选择558。PF选择552到PF选择558分别产生1×PF1 562到4×PF4 568。把1×PF1 562到4×PF4 568输入至判决单元570。判决单元570产生秩572。
[0049]把EffSNR1 542到EffSNR4 548和秩572输入到选择和量化单元574。该选择和量化单元574产生五比特CQI 575。
[0050]根据一个实施例,基于性能的秩预测算法工作如下:
[0051]1、在每个音调,计算与{1、2、3、4}层传输对应的4×4、4×3、4×2和4×1MIMO信道矩阵H(k)P1(k)、H(k)P2(k)、H(k)P3(k)和H(k)P4(k)。采取MMSE接收机,对于每个音调,如下计算{1、2、3、4}层传输的后处理SNR,SNR1(k)、SNR2(k)、SNR3(k)、SNR4(k):
如果采取其它接收机,例如QRM-MLD或IDD,那么将用不同的方式计算后处理SNR。
[0052]2、上述对于{1、2、3、4}层传输所计算的SNR等价于对于SISO设计所计算的每音调接收机SNR。然后(如同在SISO设计中那样)使用容量不受约束的映射来对于{1、2、3、4}层传输的所有音调生成平均的有效EffSNR,分别记为:EffSNR1、EffSNR2、EffSNR3、EffSNR4。对于这些有效SNR没有音调依赖性。
[0053]3、把该有效SNR与表格进行比较,该表格具有针对SISO系统的1%PER的SNR门限。对{1、2、3、4}层传输,选择SNR门限小于测量的有效SNR的最高分组格式(PF)。这些PF记为:PF1、PF2、PF3、PF4。
[0054]4、选择最佳的秩/层,以便最大化总的频谱效率,即
[0055]5、然后反馈一个5比特CQI,其中
[0056]此处所述的技术可用于各种基于OFDM的系统,以及其它系统。可以用各种装置来实现此处所述的秩预测技术。例如,可以用硬件、软件或它们的组合来实现这些技术。对于硬件实现,可以在一个或多个专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理器件(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、处理器、控制器、微控制器、微处理器、其它被设计来执行此处所述功能的电子单元,或它们的组合中,实现用于执行干扰控制的处理单元。
[0057]对于软件实现,可以用用于执行此处所述的功能的模块(例如,程序、函数等)来实现干扰控制技术。可以把软件代码存储在存储器单元中,并且用处理器来执行。可以在处理器内或处理器外实现存储器单元,在此情况下,该存储器经由本领域已知的各种装置,可通信地连接到处理器。
[0058]提供了前述的公开的实施例,以使得本领域的技术人员可以利用本发明。对本领域的技术人员来说,对这些实施例的各种修改是显而易见的,并且在不脱离本发明的精神和范围的前提下,此处所定义的总原则可应用于其它实施例。因此,本发明不限于此处所示的实施例,而是应该给予本发明与此处所公开的原理和新颖特征相一致的最广的范围。
Claims (20)
1.一种用于秩预测的方法,包括:
计算与每个音调的多个层传输对应的多个MIMO信道矩阵;
基于所述多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);
对每个音调的SNR进行映射,以生成每个层传输的有效SNR;
对于每个层传输,选择其SNR门限小于该层传输的有效SNR的最高的分组格式(PF);
从对于每个层传输所选择的最高PF中选择绝对最高的PF;以及
基于所选择的绝对最高PF,来选择秩。
2.如权利要求1所述的方法,还包括:基于所选择的秩,发送质量指示符。
3.如权利要求2所述的方法,其中,所述质量指示符是载波质量与干扰比(CQI)。
4.如权利要求1所述的方法,其中,层传输的数量是四。
5.如权利要求1所述的方法,其中,根据
来计算SNR,其中k是第k个音调,H(k)P1(k)、H(k)P2(k)、H(k)P3(k)和H(k)P4(k)对应于{1、2、3、4}层传输。
6.如权利要求1所述的方法,其中,所述映射不受容量的约束。
8.如权利要求7所述的方法,其中,根据 来计算质量指示符CQI,其中EffSNR是所选择秩的有效SNR。
9.一种无线通信设备,包括:
MIMO信道矩阵计算装置,用于计算与每个音调的多个层传输对应的多个MIMO信道矩阵;
信噪比(SNR)计算装置,用于基于所述多个MIMO信道矩阵计算每个音调的多个SNR;
映射装置,用于对每个音调的SNR进行映射,以生成每个层传输的有效SNR;
最高分组格式(PF)选择装置,用于对于每个层传输,选择其SNR门限小于该层传输的有效SNR的最高分组格式(PF);
绝对最高PF选择装置,用于从对于每个层传输所选择的最高PF中选择绝对最高PF;以及
秩选择装置,用于基于所选择的绝对最高PF,来选择秩。
10.如权利要求9所述的无线通信设备,还包括用于基于所选择的秩发送质量指示符的装置。
11.如权利要求9所述的无线通信设备,其中,层传输的数量至少是二。
12.如权利要求10所述的无线通信设备,其中,所述质量指示符是载波质量与干扰比。
13.一种被编程来执行秩预测方法的处理器,该方法包括:
计算与每个音调的多个层传输对应的多个MIMO信道矩阵;
基于所述多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);
对每个音调的SNR进行映射,以生成每个层传输的有效SNR;
对于每个层传输,选择其SNR门限小于该层传输的有效SNR的最高的分组格式(PF);
从对于每个层传输所选择的最高PF中选择绝对最高的PF;以及
基于所选择的绝对最高PF,来选择秩。
14.如权利要求13所述的处理器,其中,所述方法还包括:基于所选择的秩,发送质量指示符。
15.如权利要求13所述的处理器,其中,层传输的数量至少是二。
16.如权利要求14所述的处理器,其中,所述质量指示符是载波质量与干扰比。
17.一种包含秩预测方法的计算机可读介质,所述方法包括:
计算与每个音调的多个层传输对应的多个MIMO信道矩阵;
基于所述多个MIMO信道矩阵,计算每个音调的多个信噪比(SNR);
对每个音调的SNR进行映射,以生成每个层传输的有效SNR;
对于每个层传输,选择其SNR门限小于该层传输的有效SNR的最高的分组格式(PF);
从对于每个层传输所选择的最高PF中选择绝对最高的PF;以及
基于所选择的绝对最高PF,来选择秩。
18.如权利要求17所述的计算机可读介质,其中所述方法还包括:基于所选择的秩,发送质量指示符。
19.如权利要求17所述的计算机可读介质,其中,层传输的数量至少是二。
20.如权利要求18所述的计算机可读介质,其中,所述质量指示符是载波质量与干扰比。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101594223B (zh) * | 2008-05-29 | 2012-03-14 | 展讯通信(上海)有限公司 | 无线收发方法及其设备 |
CN101719817B (zh) * | 2008-10-10 | 2013-10-30 | 展讯通信(上海)有限公司 | 高速移动场景下的无线收发方法及设备 |
Families Citing this family (98)
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 |
US9661519B2 (en) * | 2003-02-24 | 2017-05-23 | Qualcomm Incorporated | Efficient reporting of information in a wireless communication system |
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 |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
US8135088B2 (en) | 2005-03-07 | 2012-03-13 | Q1UALCOMM Incorporated | Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing |
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 |
US8995547B2 (en) | 2005-03-11 | 2015-03-31 | Qualcomm Incorporated | Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates |
US8724740B2 (en) | 2005-03-11 | 2014-05-13 | Qualcomm Incorporated | Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates |
US8446892B2 (en) | 2005-03-16 | 2013-05-21 | Qualcomm Incorporated | Channel structures for a quasi-orthogonal multiple-access 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 |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | 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 |
US8842693B2 (en) | 2005-05-31 | 2014-09-23 | Qualcomm Incorporated | Rank step-down for MIMO SCW design employing HARQ |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
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 |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
US8599945B2 (en) | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8493942B2 (en) * | 2005-08-01 | 2013-07-23 | Qualcomm Incorporated | Interference cancellation in wireless communication |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US8073068B2 (en) | 2005-08-22 | 2011-12-06 | Qualcomm Incorporated | Selective virtual antenna transmission |
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 |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
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 |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9210651B2 (en) * | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
EP1780924A1 (en) * | 2005-10-31 | 2007-05-02 | Siemens Aktiengesellschaft | Method to determine the number of data streams to be used in a MIMO system |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
US9338767B2 (en) | 2005-12-22 | 2016-05-10 | Qualcomm Incorporated | Methods and apparatus of implementing and/or using a dedicated control channel |
US9137072B2 (en) | 2005-12-22 | 2015-09-15 | Qualcomm Incorporated | Methods and apparatus for communicating control information |
US20070149132A1 (en) | 2005-12-22 | 2007-06-28 | Junyl Li | Methods and apparatus related to selecting control channel reporting formats |
US9125092B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus for reporting and/or using control information |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
US20070183516A1 (en) * | 2006-01-13 | 2007-08-09 | Pantelis Monogioudis | Wireless communications system employing OFDMA and CDMA techniques |
US8077595B2 (en) * | 2006-02-21 | 2011-12-13 | Qualcomm Incorporated | Flexible time-frequency multiplexing structure for wireless communication |
JP2009527997A (ja) * | 2006-02-21 | 2009-07-30 | クゥアルコム・インコーポレイテッド | マルチアンテナ無線通信のための空間パイロット構造 |
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 |
DK2052468T3 (en) * | 2006-08-18 | 2015-11-09 | Qualcomm Inc | BACKUP OF CODING CONTROL INDICATION (PCI) AND CHANNEL QUALITY INDICATION (CQI) IN A WIRELESS COMMUNICATION SYSTEM |
EP2060022B1 (en) | 2006-09-06 | 2016-02-17 | Qualcomm Incorporated | Codeword permutation and reduced feedback for grouped antennas |
KR100951383B1 (ko) * | 2006-09-15 | 2010-04-08 | 삼성전자주식회사 | 다중 안테나 시스템에서 시공간 부호화 장치 및 방법 |
TWI470957B (zh) | 2006-10-30 | 2015-01-21 | Interdigital Tech Corp | 無線通信系統中處理反饋方法及裝置 |
US7894382B2 (en) * | 2006-12-29 | 2011-02-22 | Intel Corporation | Wireless communications mode switching apparatus and methods |
ES2551312T3 (es) | 2007-02-14 | 2015-11-18 | Optis Wireless Technology, Llc | Procedimientos y sistemas para el mapeo entre palabras codificadas y capas |
US8223734B2 (en) | 2007-02-14 | 2012-07-17 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving forward shared control channel in a mobile communication system |
KR101301368B1 (ko) | 2007-02-14 | 2013-08-29 | 삼성전자주식회사 | 이동통신 시스템에서 하향링크 공용 제어채널을 송수신하는장치 및 방법 |
US8379738B2 (en) * | 2007-03-16 | 2013-02-19 | Samsung Electronics Co., Ltd. | Methods and apparatus to improve performance and enable fast decoding of transmissions with multiple code blocks |
WO2008115014A2 (en) * | 2007-03-21 | 2008-09-25 | Lg Electronics Inc. | Method for mapping process block index and method for configuring process block index combination for the same |
US8386878B2 (en) | 2007-07-12 | 2013-02-26 | Samsung Electronics Co., Ltd. | Methods and apparatus to compute CRC for multiple code blocks |
WO2009096601A1 (en) * | 2008-02-01 | 2009-08-06 | Nec Corporation | Estimating channel conditions in a mimo ofdm communication system |
US9065646B2 (en) | 2008-02-04 | 2015-06-23 | Nokia Solutions And Networks Oy | ACK/NACK channelization for resource blocks containing both ACK/NACK and CQI |
JP5109707B2 (ja) * | 2008-02-19 | 2012-12-26 | コニカミノルタビジネステクノロジーズ株式会社 | 定着装置及び画像形成装置 |
US8077802B2 (en) * | 2008-03-17 | 2011-12-13 | Intel Corporation | Device, system, and method of resource allocation in a wireless network |
US20090238086A1 (en) * | 2008-03-19 | 2009-09-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Rank Dependent CQI Back-Off |
US8634467B2 (en) * | 2008-05-06 | 2014-01-21 | Choy Sai Foundation L.L.C. | Flexible Wyner-Ziv video frame coding |
RU2008136226A (ru) * | 2008-09-09 | 2010-03-20 | Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." (KR) | Способ декодирования в многоантенной системе приемопередачи (варианты) |
ES2496291T3 (es) | 2009-11-13 | 2014-09-18 | Interdigital Patent Holdings, Inc. | Método y aparato para soportar acciones de gestión para muy alto rendimiento en comunicaciones inalámbricas |
US8743988B2 (en) | 2011-07-29 | 2014-06-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission mode adaptation in a wireless network |
US9100231B2 (en) * | 2011-11-04 | 2015-08-04 | Qualcomm Incorporated | Hybrid approach for physical downlink shared channel (PDSCH) interference cancellation |
US10334533B2 (en) | 2016-11-02 | 2019-06-25 | At&T Intellectual Property I, L.P. | Non-orthogonal design for channel state information reference signals for a 5G air interface or other next generation network interfaces |
US10237032B2 (en) | 2017-01-06 | 2019-03-19 | At&T Intellectual Property I, L.P. | Adaptive channel state information reference signal configurations for a 5G wireless communication network or other next generation network |
US10320512B2 (en) | 2017-01-08 | 2019-06-11 | At&T Intellectual Property I, L.P. | Interference cancelation for 5G or other next generation network |
US10237025B2 (en) | 2017-02-03 | 2019-03-19 | At&T Intellectual Property I, L.P. | Detecting data in multiantenna wireless communication systems |
US10484981B2 (en) | 2017-08-10 | 2019-11-19 | At&T Intellectual Property I, L.P. | Decoding downlink control channels for 5G wireless communication systems |
US10756860B2 (en) | 2018-11-05 | 2020-08-25 | XCOM Labs, Inc. | Distributed multiple-input multiple-output downlink configuration |
US10812216B2 (en) | 2018-11-05 | 2020-10-20 | XCOM Labs, Inc. | Cooperative multiple-input multiple-output downlink scheduling |
US10659112B1 (en) | 2018-11-05 | 2020-05-19 | XCOM Labs, Inc. | User equipment assisted multiple-input multiple-output downlink configuration |
US10432272B1 (en) | 2018-11-05 | 2019-10-01 | XCOM Labs, Inc. | Variable multiple-input multiple-output downlink user equipment |
CN113169764A (zh) | 2018-11-27 | 2021-07-23 | 艾斯康实验室公司 | 非相干协作式多输入多输出通信 |
US10756795B2 (en) | 2018-12-18 | 2020-08-25 | XCOM Labs, Inc. | User equipment with cellular link and peer-to-peer link |
US11063645B2 (en) | 2018-12-18 | 2021-07-13 | XCOM Labs, Inc. | Methods of wirelessly communicating with a group of devices |
US11330649B2 (en) | 2019-01-25 | 2022-05-10 | XCOM Labs, Inc. | Methods and systems of multi-link peer-to-peer communications |
US10756767B1 (en) | 2019-02-05 | 2020-08-25 | XCOM Labs, Inc. | User equipment for wirelessly communicating cellular signal with another user equipment |
US10756782B1 (en) | 2019-04-26 | 2020-08-25 | XCOM Labs, Inc. | Uplink active set management for multiple-input multiple-output communications |
US11032841B2 (en) | 2019-04-26 | 2021-06-08 | XCOM Labs, Inc. | Downlink active set management for multiple-input multiple-output communications |
US10735057B1 (en) | 2019-04-29 | 2020-08-04 | XCOM Labs, Inc. | Uplink user equipment selection |
US10686502B1 (en) | 2019-04-29 | 2020-06-16 | XCOM Labs, Inc. | Downlink user equipment selection |
US11411778B2 (en) | 2019-07-12 | 2022-08-09 | XCOM Labs, Inc. | Time-division duplex multiple input multiple output calibration |
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 |
CA3195885A1 (en) | 2020-10-19 | 2022-04-28 | XCOM Labs, Inc. | Reference signal for wireless communication systems |
WO2022093988A1 (en) | 2020-10-30 | 2022-05-05 | XCOM Labs, Inc. | Clustering and/or rate selection in multiple-input multiple-output communication systems |
Family Cites Families (888)
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 |
US4747535A (en) | 1987-05-18 | 1988-05-31 | Uarco Incorporated | Envelope assembly |
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. |
US5768276A (en) | 1992-10-05 | 1998-06-16 | Telefonaktiebolaget Lm Ericsson | Digital control channels having logical channels supporting broadcast SMS |
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 |
US5603081A (en) | 1993-11-01 | 1997-02-11 | Telefonaktiebolaget Lm Ericsson | Method for communicating in a wireless communication system |
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 |
ATE158910T1 (de) | 1993-06-18 | 1997-10-15 | Qualcomm Inc | Verfahren und einrichtung zur bestimmung der datenrate eines empfangenen signals |
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 |
SG48266A1 (en) | 1993-12-22 | 1998-04-17 | Philips Electronics Nv | Multicarrier frequency hopping communications system |
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 |
EP0788688B1 (en) | 1994-10-27 | 2004-01-21 | International Business Machines Corporation | Method and apparatus for secure identification of a mobile user in a communication network |
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 |
US6018317A (en) | 1995-06-02 | 2000-01-25 | Trw Inc. | Cochannel signal processing system |
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 |
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 |
DE69633705T2 (de) | 1995-11-16 | 2006-02-02 | Ntt Mobile Communications Network Inc. | Verfahren zum Erfassen eines digitalen Signals und Detektor |
JPH09139725A (ja) | 1995-11-16 | 1997-05-27 | Matsushita Electric Ind Co Ltd | 多重通信装置 |
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 |
US5887023A (en) * | 1995-11-29 | 1999-03-23 | Nec Corporation | Method and apparatus for a frequency hopping-spread spectrum communication system |
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 |
IL120574A (en) | 1996-05-17 | 2002-09-12 | Motorala Ltd | Methods and devices for transmitter track weights |
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 |
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 |
WO1998037706A2 (en) | 1997-02-21 | 1998-08-27 | Motorola Inc. | Method and apparatus for allocating spectral resources in a wireless communication system |
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 |
US6359923B1 (en) | 1997-12-18 | 2002-03-19 | At&T Wireless Services, Inc. | Highly bandwidth efficient communications |
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 |
CA2411996C (en) | 1997-04-24 | 2009-09-08 | Ntt Mobile Communications Network Inc. | Method and system for mobile communications |
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 |
FI105063B (fi) | 1997-05-16 | 2000-05-31 | Nokia Networks Oy | Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä |
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 |
US6374115B1 (en) | 1997-05-28 | 2002-04-16 | Transcrypt International/E.F. Johnson | Method and apparatus for trunked radio repeater communications with backwards compatibility |
EP1471760A3 (en) | 1997-05-30 | 2005-08-24 | QUALCOMM Incorporated | A method and apparatus for paging a wireless terminal in a wireless communications system |
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 |
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 |
KR100369602B1 (ko) | 1997-11-03 | 2003-04-11 | 삼성전자 주식회사 | 부호분할다중접속방식이동통신시스템의전력제어비트삽입방법 |
US7184426B2 (en) * | 2002-12-12 | 2007-02-27 | Qualcomm, Incorporated | Method and apparatus for burst pilot for a time division multiplex system |
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 |
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 |
DE69908516T2 (de) | 1998-02-14 | 2003-12-11 | Samsung Electronics Co Ltd | Daten kommunikationsgerät und verfahren für mobile kommunikationsanordnung mit zugeteiltem kontrollkanal |
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 |
CN1298616A (zh) | 1998-02-27 | 2001-06-06 | 西门子公司 | 具有无线的在移动和/或静止发射/接收设备之间基于码分多址和时分多址通信的通信系统 |
CN1173491C (zh) | 1998-02-27 | 2004-10-27 | 西门子公司 | 具有无线的基于码分复用和时分多址通信的通信系统 |
KR100299148B1 (ko) | 1998-03-14 | 2001-09-26 | 윤종용 | 부호분할다중접속 통신시스템에서 서로 다른 프레임 길이를갖는메시지를 인터믹스하여 송수신하는 장치 및 방법 |
CA2324450C (en) | 1998-03-23 | 2006-01-03 | Samsung Electronics Co., Ltd. | Power control device and method for controlling a reverse link common channel in a cdma communication system |
EP2285054A1 (en) | 1998-04-03 | 2011-02-16 | Tellabs Operations, Inc. | Filter for impulse response shortening, with additional 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 |
EP1074099B1 (fr) | 1998-04-21 | 2003-02-05 | THOMSON multimedia | Procede de transmission dans un reseau de communication domestique comportant un canal sans fil |
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 |
KR100383575B1 (ko) | 1998-05-12 | 2004-06-26 | 삼성전자주식회사 | 단말기의송신전력에서피크전력대평균전력비를줄이기위한확산변조방법및장치 |
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 |
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 |
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 |
KR100620087B1 (ko) | 1998-07-13 | 2006-09-05 | 소니 가부시끼 가이샤 | 통신방법, 송신기 및 수신기 |
CA2302269C (en) | 1998-07-16 | 2003-11-04 | Samsung Electronics Co., Ltd. | Processing packet data in mobile communication system |
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 |
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 |
DE69815113T2 (de) | 1998-12-04 | 2004-04-08 | Lucent Technologies Inc. | Fehlerverschleierung und -korrektur für Sprach-, Bild- und Videosignale |
US6590881B1 (en) | 1998-12-04 | 2003-07-08 | Qualcomm, Incorporated | Method and apparatus for providing wireless communication system synchronization |
DE69935127T2 (de) | 1998-12-07 | 2007-06-14 | Samsung Electronics Co., Ltd., Suwon | Gerät und verfahren für unterbrochene übertragung in einem mobilen cdma-kommunikationssystem |
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 |
EP1439677B9 (en) | 1999-01-08 | 2007-11-07 | Sony Deutschland GmbH | Synchronisation symbol structure for an 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 |
US6584140B1 (en) | 1999-01-22 | 2003-06-24 | Systems Information And Electronic Systems Integration Inc. | Spectrum efficient fast frequency-hopped modem with coherent demodulation |
US6233075B1 (en) | 1999-01-25 | 2001-05-15 | Telcordia Technologies, Inc. | Optical layer survivability and security system |
US6388998B1 (en) | 1999-02-04 | 2002-05-14 | Lucent Technologies Inc. | Reuse of codes and spectrum in a CDMA system with multiple-sector cells |
US6597746B1 (en) | 1999-02-18 | 2003-07-22 | Globespanvirata, Inc. | System and method for peak to average power ratio reduction |
US6256478B1 (en) | 1999-02-18 | 2001-07-03 | Eastman Kodak Company | Dynamic packet sizing in an RF communications system |
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 |
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 |
US6317435B1 (en) | 1999-03-08 | 2001-11-13 | Qualcomm Incorporated | Method and apparatus for maximizing the use of available capacity in a communication system |
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 |
US6614857B1 (en) | 1999-04-23 | 2003-09-02 | Lucent Technologies Inc. | Iterative channel estimation and compensation based thereon |
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 |
BR0006112A (pt) | 1999-05-12 | 2001-04-03 | Samsung Electronics Co Ltd | Método para suportar um modo de transmissão descontìnua em uma estação de base em um sistema de comunicação móvel |
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 |
US6445917B1 (en) | 1999-05-19 | 2002-09-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile station measurements with event-based reporting |
US6674787B1 (en) * | 1999-05-19 | 2004-01-06 | Interdigital Technology Corporation | Raising random access channel packet payload |
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 |
EP1063780A3 (en) | 1999-06-02 | 2003-11-26 | Texas Instruments Incorporated | Spread spectrum channel estimation sequences |
US6631126B1 (en) | 1999-06-11 | 2003-10-07 | Lucent Technologies Inc. | Wireless communications using circuit-oriented and packet-oriented frame selection/distribution functions |
US6539213B1 (en) | 1999-06-14 | 2003-03-25 | Time Domain Corporation | System and method for impulse radio power control |
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 |
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 |
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 |
US6363060B1 (en) | 1999-06-30 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for fast WCDMA acquisition |
US6657949B1 (en) | 1999-07-06 | 2003-12-02 | Cisco Technology, Inc. | Efficient request access for OFDM systems |
JP2001024535A (ja) | 1999-07-09 | 2001-01-26 | Matsushita Electric Ind Co Ltd | 受信機 |
EP1200545B1 (en) | 1999-07-28 | 2007-02-21 | Ciba SC Holding AG | 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 |
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 |
US6654431B1 (en) | 1999-09-15 | 2003-11-25 | Telcordia Technologies, Inc. | Multicarrier personal access 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 |
US7006482B1 (en) | 1999-10-02 | 2006-02-28 | Samsung Electronics Co., Ltd. | Apparatus and method for gating data on a control channel in a CDMA communication system |
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 |
JP2003515294A (ja) | 1999-11-17 | 2003-04-22 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 移動電気通信における加速度依存チャネル切換 |
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 |
DE19957288C1 (de) | 1999-11-29 | 2001-05-10 | Siemens Ag | Verfahren zur Signalisierung einer Funkkanalstruktur in einem Funk-Kommunikationssystem |
EP1232575B1 (en) | 1999-11-29 | 2009-06-03 | Samsung Electronics Co., Ltd. | method for assigning a common packet channel in a cdma communication system |
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 |
EP1254533A4 (en) * | 2000-02-09 | 2006-04-05 | Golden Bridge Tech Inc | 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 |
US6642887B2 (en) | 2000-02-29 | 2003-11-04 | Hrl Laboratories, Llc | Cooperative mobile antenna system |
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 |
US7200368B1 (en) | 2000-03-15 | 2007-04-03 | Nokia Corporation | Transmit diversity method and system |
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 |
ATE301350T1 (de) | 2000-04-07 | 2005-08-15 | 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 |
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 |
US6954481B1 (en) | 2000-04-18 | 2005-10-11 | Flarion Technologies, Inc. | Pilot use 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 |
AU2001257133A1 (en) | 2000-04-22 | 2001-11-07 | Atheros Communications, Inc. | Multi-carrier communication systems employing variable symbol rates and number of carriers |
US6748220B1 (en) | 2000-05-05 | 2004-06-08 | Nortel Networks Limited | Resource allocation in wireless networks |
US6519462B1 (en) * | 2000-05-11 | 2003-02-11 | Lucent Technologies Inc. | Method and apparatus for multi-user resource 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 |
KR100370746B1 (ko) | 2000-05-30 | 2003-02-05 | 한국전자통신연구원 | 다차원 직교 자원 도약 다중화 통신 방식 및 장치 |
CA2310188A1 (en) | 2000-05-30 | 2001-11-30 | Mark J. Frazer | Communication structure with channels configured responsive to reception quality |
GB2363256B (en) | 2000-06-07 | 2004-05-12 | Motorola Inc | Adaptive antenna array and method of controlling operation thereof |
US8223867B2 (en) * | 2000-06-09 | 2012-07-17 | Texas Instruments Incorporated | Wireless communications with efficient channel coding |
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 |
JP4212353B2 (ja) | 2000-07-11 | 2009-01-21 | 財団法人神奈川科学技術アカデミー | 液状試料の質量分析用プローブ |
IT1318161B1 (it) | 2000-07-14 | 2003-07-23 | Cit Alcatel | Metodo e dispositivo per il recupero di portante in sistemi ofdm |
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 |
JP4808907B2 (ja) | 2000-07-26 | 2011-11-02 | 三菱電機株式会社 | マルチキャリアcdma通信装置およびマルチキャリアcdma送信装置 |
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 |
US6985434B2 (en) * | 2000-09-01 | 2006-01-10 | Nortel Networks Limited | Adaptive time diversity and spatial diversity for OFDM |
US6850481B2 (en) * | 2000-09-01 | 2005-02-01 | Nortel Networks Limited | Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system |
US6937592B1 (en) | 2000-09-01 | 2005-08-30 | Intel Corporation | Wireless communications system that supports multiple modes of operation |
US6898441B1 (en) | 2000-09-12 | 2005-05-24 | Lucent Technologies Inc. | Communication system having a flexible transmit configuration |
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
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 |
US7349371B2 (en) | 2000-09-29 | 2008-03-25 | Arraycomm, Llc | Selecting random access channels |
US6778513B2 (en) | 2000-09-29 | 2004-08-17 | Arraycomm, Inc. | Method and apparatus for separting multiple users in a shared-channel communication system |
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 |
JP3836431B2 (ja) | 2000-10-20 | 2006-10-25 | サムスン エレクトロニクス カンパニー リミテッド | 移動通信システムにおけるパケットデータの伝送率を決定するための装置及び方法 |
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 |
ATE468723T1 (de) | 2000-11-03 | 2010-06-15 | Sony Deutschland Gmbh | Sendeleistungsregelung für ofdm- kommunikationsverbindungen |
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 |
CA2428061A1 (en) | 2000-11-07 | 2002-05-16 | Nokia Corporation | System for uplink scheduling of packet data traffic in wireless system |
US20020090024A1 (en) | 2000-11-15 | 2002-07-11 | Tan Keng Tiong | Method and apparatus for non-linear code-division multiple access technology |
ATE330378T1 (de) | 2000-11-17 | 2006-07-15 | Nokia Corp | Verfahren, vorrichtungen und telekommunikationsnetzwerk zum regeln der antennengewichte eines transceivers |
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 |
EP1343340B1 (en) | 2000-12-11 | 2007-04-25 | Sharp Kabushiki Kaisha | Radio communication system |
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 |
US6947748B2 (en) | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
CN100456758C (zh) | 2000-12-15 | 2009-01-28 | 昂达博思公司 | 具有基于组的副载波分配的多载波通信方法 |
US20020077152A1 (en) | 2000-12-15 | 2002-06-20 | Johnson Thomas J. | Wireless communication methods and systems using multiple overlapping sectored cells |
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 |
US6801790B2 (en) | 2001-01-17 | 2004-10-05 | Lucent Technologies Inc. | Structure for multiple antenna configurations |
US6813284B2 (en) | 2001-01-17 | 2004-11-02 | Qualcomm Incorporated | Method and apparatus for allocating data streams given transmission time interval (TTI) constraints |
EP1227601A1 (en) | 2001-01-25 | 2002-07-31 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Downlink scheduling using parallel code trees |
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 |
US7230941B2 (en) | 2001-04-26 | 2007-06-12 | Qualcomm Incorporated | Preamble channel decoding |
US6625172B2 (en) | 2001-04-26 | 2003-09-23 | Joseph P. Odenwalder | Rescheduling scheduled transmissions |
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 |
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 |
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 |
EP1259008B1 (en) | 2001-05-17 | 2006-10-04 | SAMSUNG ELECTRONICS Co. Ltd. | Mobile communication apparatus with antenna array and mobile coomunication method therefor |
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 |
CN100414861C (zh) | 2001-05-25 | 2008-08-27 | 明尼苏达大学董事会 | 无线通信网中的空时编码传输 |
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 |
CA2390253A1 (en) | 2001-06-11 | 2002-12-11 | Unique Broadband Systems, Inc. | Ofdm multiple sub-channel communication system |
AU2002322131A1 (en) | 2001-06-21 | 2003-01-08 | Flarion Technologies, Inc. | 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 |
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 |
US7197282B2 (en) | 2001-07-26 | 2007-03-27 | Ericsson Inc. | Mobile station loop-back signal processing |
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 |
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. |
US20050044206A1 (en) * | 2001-09-07 | 2005-02-24 | Staffan Johansson | 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 |
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 |
CA2408423C (en) | 2001-10-17 | 2013-12-24 | Nec Corporation | Mobile communication system, communication control method, base station and mobile station to be used in the same |
US7773699B2 (en) | 2001-10-17 | 2010-08-10 | Nortel Networks Limited | Method and apparatus for channel quality measurements |
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 |
US7164649B2 (en) * | 2001-11-02 | 2007-01-16 | Qualcomm, Incorporated | Adaptive rate control for OFDM communication system |
US20030086393A1 (en) | 2001-11-02 | 2003-05-08 | Subramanian Vasudevan | Method for allocating wireless communication resources |
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 |
US20030125040A1 (en) | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication 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 |
AU2002353270A1 (en) | 2001-12-03 | 2003-06-17 | Nokia Corporation | Policy based mechanisms for selecting access routers and mobile context |
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 |
CN100596044C (zh) | 2002-01-10 | 2010-03-24 | 富士通株式会社 | Ofdm系统中的导频复用方法和ofdm接收方法 |
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) |
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 |
IL151937A0 (en) | 2002-02-13 | 2003-07-31 | Witcom Ltd | Near-field spatial multiplexing |
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 |
KR100421371B1 (ko) * | 2002-02-19 | 2004-03-06 | 엘지전자 주식회사 | 이동통신 시스템의 적응형 변조 및 코딩 방법 |
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 |
US7424072B2 (en) | 2002-04-15 | 2008-09-09 | Matsushita Electric Industrial Co., Ltd. | Receiving apparatus and receiving method |
US7522673B2 (en) | 2002-04-22 | 2009-04-21 | Regents Of The University Of Minnesota | Space-time coding using estimated channel information |
ES2351438T3 (es) | 2002-04-25 | 2011-02-04 | Powerwave Cognition, Inc. | Utilización dinámica de recursos inalámbricos. |
JP2003318857A (ja) | 2002-04-25 | 2003-11-07 | Mitsubishi Electric Corp | デジタル放送受信機 |
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 |
WO2003105370A1 (en) | 2002-06-07 | 2003-12-18 | Nokia Corporation | Apparatus and an associated method, by which to facilitate scheduling of data communications ina radio communications system |
KR100548311B1 (ko) | 2002-06-07 | 2006-02-02 | 엘지전자 주식회사 | 이동 통신 시스템에서의 송신 다이버시티 장치와 방법 |
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 |
US7184713B2 (en) * | 2002-06-20 | 2007-02-27 | Qualcomm, Incorporated | Rate control for multi-channel communication systems |
US7613248B2 (en) | 2002-06-24 | 2009-11-03 | Qualcomm Incorporated | Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems |
US7095709B2 (en) | 2002-06-24 | 2006-08-22 | Qualcomm, Incorporated | Diversity transmission modes for MIMO OFDM communication 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 |
EP1520360B1 (en) | 2002-06-27 | 2007-01-24 | Koninklijke Philips Electronics N.V. | Measurement of channel characterisitics in a communication system |
US20040077379A1 (en) | 2002-06-27 | 2004-04-22 | Martin Smith | Wireless transmitter, transceiver and method |
US7551546B2 (en) | 2002-06-27 | 2009-06-23 | Nortel Networks Limited | Dual-mode shared OFDM methods/transmitters, receivers and systems |
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 |
US7372911B1 (en) | 2002-06-28 | 2008-05-13 | Arraycomm, Llc | Beam forming and transmit diversity in a multiple array radio communications system |
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 |
EP1553714B1 (en) | 2002-07-16 | 2020-07-01 | Optis Wireless Technology, LLC | Communicating method and transmitting device |
US20060045000A1 (en) | 2002-07-17 | 2006-03-02 | Koninklijke Philips Electronics N.V. | Time-frequency interleaved mc-cdma for quasi-synchronous systems |
EP1563656A1 (en) | 2002-07-17 | 2005-08-17 | Soma Networks, Inc. | Frequency domain equalization in communications systems with scrambling |
WO2004010591A2 (en) | 2002-07-18 | 2004-01-29 | Interdigital Technology Corporation | Orthogonal variable spreading factor (ovsf) code assignment |
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 |
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 |
US7050405B2 (en) | 2002-08-23 | 2006-05-23 | Qualcomm Incorporated | Method and system for a data transmission in a communication system |
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 |
KR100831987B1 (ko) | 2002-08-30 | 2008-05-23 | 삼성전자주식회사 | 다중 사용자를 위한 다중 안테나를 이용한 송수신 장치 |
US7167916B2 (en) * | 2002-08-30 | 2007-01-23 | Unisys Corporation | Computer OS dispatcher operation with virtual switching queue and IP queues |
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 |
US8320301B2 (en) * | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US8218609B2 (en) | 2002-10-25 | 2012-07-10 | Qualcomm Incorporated | Closed-loop rate control for a multi-channel communication system |
US7002900B2 (en) * | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US7477618B2 (en) | 2002-10-25 | 2009-01-13 | Qualcomm Incorporated | Method and apparatus for stealing power or code for data channel operations |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
EP1554831B1 (en) | 2002-10-26 | 2013-05-22 | 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 |
EP1568155A4 (en) | 2002-10-29 | 2011-06-22 | Nokia Corp | LIGHT COMPLEXITY BEAMMER FOR MULTIPLE TRANSMITTERS AND RECEIVERS |
EP1576734A1 (en) | 2002-10-30 | 2005-09-21 | Koninklijke Philips Electronics N.V. | Trellis-based receiver |
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 |
JP2004153676A (ja) | 2002-10-31 | 2004-05-27 | Mitsubishi Electric Corp | 通信装置、送信機および受信機 |
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 |
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 |
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 |
US20040098505A1 (en) | 2002-11-20 | 2004-05-20 | Clemmensen Daniel G. | Forwarding system with multiple logical sub-system functionality |
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 |
CA2508525C (en) | 2002-12-04 | 2010-11-16 | Interdigital Technology Corporation | Detection of channel quality indicator |
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 |
EP1429506A3 (en) | 2002-12-09 | 2007-01-24 | Broadcom Corporation | Pipeline architecture for equalisers |
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 |
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 |
US7280467B2 (en) | 2003-01-07 | 2007-10-09 | Qualcomm Incorporated | Pilot transmission schemes for wireless multi-carrier communication systems |
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 |
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 |
JP4237708B2 (ja) | 2003-02-14 | 2009-03-11 | 株式会社エヌ・ティ・ティ・ドコモ | マルチキャリア式多重入出力通信システムのための2次元チャネル推定 |
US8391249B2 (en) | 2003-02-18 | 2013-03-05 | Qualcomm Incorporated | Code division multiplexing commands on a code division multiplexed channel |
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 |
US7155236B2 (en) | 2003-02-18 | 2006-12-26 | Qualcomm Incorporated | Scheduled and autonomous transmission and acknowledgement |
WO2004075442A2 (en) | 2003-02-19 | 2004-09-02 | Flarion Technologies, Inc. | Methods and apparatus of enhanced coding in multi-user communications systems |
US7813322B2 (en) | 2003-02-19 | 2010-10-12 | Qualcomm Incorporated | Efficient automatic repeat request methods and apparatus |
US9544860B2 (en) | 2003-02-24 | 2017-01-10 | Qualcomm Incorporated | Pilot signals for use in multi-sector cells |
US7206297B2 (en) | 2003-02-24 | 2007-04-17 | Autocell Laboratories, Inc. | Method for associating access points with stations using bid techniques |
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 |
JP4298744B2 (ja) | 2003-02-27 | 2009-07-22 | インターデイジタル テクノロジー コーポレーション | 高速ダイナミックチャネル割当の無線リソース管理手順 |
JP2004260658A (ja) | 2003-02-27 | 2004-09-16 | Matsushita Electric Ind Co Ltd | 無線lan装置 |
KR100547758B1 (ko) | 2003-02-28 | 2006-01-31 | 삼성전자주식회사 | 초광대역 통신 시스템의 프리앰블 송수신 장치 및 방법 |
WO2004077777A1 (en) * | 2003-02-28 | 2004-09-10 | Nortel Networks Limited | Sub-carrier allocation for ofdm |
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 |
JP4181906B2 (ja) | 2003-03-26 | 2008-11-19 | 富士通株式会社 | 送信機及び受信機 |
US20040192386A1 (en) | 2003-03-26 | 2004-09-30 | Naveen Aerrabotu | Method and apparatus for multiple subscriber identities in a mobile communication device |
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 |
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 |
DE60301270T2 (de) * | 2003-03-27 | 2006-07-20 | Nnt Docomo, Inc. | Vorrichtung und verfahren zur schätzung einer mehrzahl von kanälen |
US7233634B1 (en) | 2003-03-27 | 2007-06-19 | Nortel Networks Limited | Maximum likelihood decoding |
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 |
JP4490368B2 (ja) | 2003-04-21 | 2010-06-23 | 三菱電機株式会社 | 無線通信装置、無線通信システムおよび無線通信方法 |
KR20120024992A (ko) | 2003-04-23 | 2012-03-14 | 콸콤 인코포레이티드 | 무선 통신 시스템에서 수행성능을 향상시키는 방법들 및 장치 |
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 |
US7177297B2 (en) | 2003-05-12 | 2007-02-13 | Qualcomm Incorporated | Fast frequency hopping with a code division multiplexed pilot in an OFDMA system |
US7254158B2 (en) | 2003-05-12 | 2007-08-07 | Qualcomm Incorporated | Soft handoff with interference cancellation in a wireless frequency hopping communication 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 |
KR100526542B1 (ko) | 2003-05-15 | 2005-11-08 | 삼성전자주식회사 | 이동 통신 시스템에서 다중안테나를 사용하는송신다이버시티 방식을 사용하여 데이터를 송수신하는장치 및 방법 |
US7181196B2 (en) | 2003-05-15 | 2007-02-20 | Lucent Technologies Inc. | Performing authentication in a communications system |
EP1623512A1 (en) | 2003-05-15 | 2006-02-08 | Lg Electronics Inc. | Method and apparatus for allocating channelization codes for wireless communications |
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 |
RU2313909C2 (ru) | 2003-06-18 | 2007-12-27 | Самсунг Электроникс Ко., Лтд. | Устройство и способ для передачи и приема шаблона пилот-сигнала для идентификации базовой станции в системе связи омчр |
US7236747B1 (en) | 2003-06-18 | 2007-06-26 | Samsung Electronics Co., Ltd. (SAIT) | Increasing OFDM transmit power via reduction in pilot tone |
DE60325049D1 (de) | 2003-06-22 | 2009-01-15 | Ntt Docomo Inc | Vorrichtung und verfahren zur kanalschätzung in einem übertragungssystem mit mehreren eingängen |
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 |
EP1641291A1 (en) | 2003-06-30 | 2006-03-29 | 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 |
TWI330021B (en) * | 2003-07-25 | 2010-09-01 | Panasonic Corp | Communication network system, and transmission/reception apparatus, method and integrated circuit for use therein |
KR100987286B1 (ko) | 2003-07-31 | 2010-10-12 | 삼성전자주식회사 | 무선 통신 시스템에서 다중접속 방법 및 그 제어 시스템 |
US7126928B2 (en) | 2003-08-05 | 2006-10-24 | Qualcomm Incorporated | Grant, acknowledgement, and rate control active sets |
US7315527B2 (en) | 2003-08-05 | 2008-01-01 | Qualcomm Incorporated | Extended acknowledgement and rate control channel |
US8140980B2 (en) * | 2003-08-05 | 2012-03-20 | Verizon Business Global Llc | Method and system for providing conferencing services |
AU2003266259A1 (en) | 2003-08-05 | 2005-02-25 | 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 |
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 |
RU2349043C2 (ru) | 2003-08-12 | 2009-03-10 | Мацусита Электрик Индастриал Ко., Лтд. | Устройство радиосвязи и способ передачи пилот-символа |
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 |
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 |
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 |
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 |
EP1646170B1 (en) | 2003-08-20 | 2019-10-09 | Godo Kaisha IP Bridge 1 | Radio communication apparatus and subcarrier assignment method |
US6925145B2 (en) * | 2003-08-22 | 2005-08-02 | General Electric Company | High speed digital radiographic inspection of piping |
US20050063298A1 (en) | 2003-09-02 | 2005-03-24 | Qualcomm Incorporated | Synchronization in a broadcast OFDM system using time division multiplexed pilots |
US7221680B2 (en) | 2003-09-02 | 2007-05-22 | Qualcomm Incorporated | Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system |
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 |
US20050047517A1 (en) | 2003-09-03 | 2005-03-03 | Georgios Giannakis B. | Adaptive modulation for multi-antenna transmissions with partial channel knowledge |
US7400856B2 (en) | 2003-09-03 | 2008-07-15 | Motorola, Inc. | Method and apparatus for relay facilitated communications |
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 |
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 |
WO2005034438A1 (en) | 2003-09-30 | 2005-04-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for congestion control in high speed wireless packet data networks |
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 |
EP1521414B1 (en) | 2003-10-03 | 2008-10-29 | Kabushiki Kaisha Toshiba | Method and apparatus for sphere decoding |
US7230942B2 (en) | 2003-10-03 | 2007-06-12 | Qualcomm, Incorporated | Method of downlink resource allocation in a sectorized environment |
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 |
EP1526674B1 (en) | 2003-10-21 | 2007-08-01 | Alcatel Lucent | Method for subcarrier allocation and for modulation scheme selection in a wireless multicarrier transmission system |
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 |
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 |
KR20050053907A (ko) | 2003-12-03 | 2005-06-10 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 서브 캐리어 할당 방법 |
WO2005055543A1 (en) | 2003-12-03 | 2005-06-16 | Australian Telecommunications Cooperative Research Centre | Channel estimation for ofdm systems |
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 |
US7145940B2 (en) | 2003-12-05 | 2006-12-05 | Qualcomm Incorporated | Pilot transmission schemes for a multi-antenna system |
AU2004310933B2 (en) | 2003-12-05 | 2008-06-12 | Qualcomm Incorporated | Apparatus and method for transmitting data by selected eigenvector in closed loop MIMO mobile communication system |
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 |
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 |
US7302009B2 (en) | 2003-12-17 | 2007-11-27 | Qualcomm Incorporated | Broadcast transmission with spatial spreading in a multi-antenna communication system |
EP1545082A3 (en) | 2003-12-17 | 2005-08-03 | Kabushiki Kaisha Toshiba | Signal decoding methods and apparatus |
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 |
KR20050063826A (ko) | 2003-12-19 | 2005-06-28 | 엘지전자 주식회사 | 무선통신 시스템의 무선자원 할당방법 |
DE60335305D1 (de) | 2003-12-22 | 2011-01-20 | Ericsson Telefon Ab L M | Verfahren zur bestimmung von sendegewichten |
US7181170B2 (en) * | 2003-12-22 | 2007-02-20 | Motorola Inc. | Apparatus and method for adaptive broadcast transmission |
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 |
US7872963B2 (en) | 2003-12-27 | 2011-01-18 | Electronics And Telecommunications Research Institute | 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 |
EP1704664B1 (en) | 2004-01-09 | 2013-10-23 | 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 |
HUE026306T2 (en) | 2004-01-20 | 2016-06-28 | Qualcomm Inc | Synchronized Broadcast / Multiple Transmission Communication |
US20050159162A1 (en) | 2004-01-20 | 2005-07-21 | Samsung Electronics Co., Ltd. | Method for transmitting data in mobile communication network |
WO2005069505A1 (en) | 2004-01-20 | 2005-07-28 | Lg Electronics Inc. | Method for transmitting/receiving signal in mimo system |
US8611283B2 (en) | 2004-01-28 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus of using a single channel to provide acknowledgement and assignment messages |
WO2005081439A1 (en) | 2004-02-13 | 2005-09-01 | Neocific, Inc. | Methods and apparatus for multi-carrier communication systems with adaptive transmission and feedback |
DE602005014097D1 (de) | 2004-02-05 | 2009-06-04 | 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 |
WO2005081437A1 (en) | 2004-02-17 | 2005-09-01 | Huawei Technologies Co., Ltd. | Multiplexing scheme in a communication system |
US7564906B2 (en) | 2004-02-17 | 2009-07-21 | Nokia Siemens Networks Oy | OFDM transceiver structure with time-domain scrambling |
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 |
EP1721475A1 (en) | 2004-02-27 | 2006-11-15 | 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 |
US7290195B2 (en) | 2004-03-05 | 2007-10-30 | Microsoft Corporation | Adaptive acknowledgment delay |
KR101084113B1 (ko) | 2004-03-05 | 2011-11-17 | 엘지전자 주식회사 | 이동통신의 핸드오버에 적용되는 서비스 정보 전달 방법 |
US20050201296A1 (en) | 2004-03-15 | 2005-09-15 | Telefonaktiebolaget Lm Ericsson (Pu | Reduced channel quality feedback |
CN106160830B (zh) | 2004-03-15 | 2020-02-14 | 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 |
GB0409704D0 (en) | 2004-04-30 | 2004-06-02 | Nokia Corp | A method for verifying a first identity and a second identity of an entity |
KR100594084B1 (ko) | 2004-04-30 | 2006-06-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 수신기의 채널 추정 방법 및 채널추정기 |
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 |
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 |
US8027372B2 (en) | 2004-06-18 | 2011-09-27 | Qualcomm Incorporated | Signal acquisition in a wireless communication system |
US7724777B2 (en) | 2004-06-18 | 2010-05-25 | Qualcomm Incorporated | Quasi-orthogonal multiplexing for a multi-carrier 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 |
ATE514069T1 (de) | 2004-07-02 | 2011-07-15 | Vibration Res Corp | System und verfahren zur gleichzeitigen steuerung von spektrum und kurtosis einer nicht periodischen schwingung |
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 |
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 |
US7676007B1 (en) | 2004-07-21 | 2010-03-09 | Jihoon Choi | System and method for interpolation based transmit beamforming for MIMO-OFDM with partial feedback |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US7567621B2 (en) | 2004-07-21 | 2009-07-28 | Qualcomm Incorporated | Capacity based rank prediction for MIMO design |
US7257406B2 (en) | 2004-07-23 | 2007-08-14 | Qualcomm, Incorporated | Restrictive reuse set management |
JP5042830B2 (ja) | 2004-08-03 | 2012-10-03 | エージェンシー フォー サイエンス, テクノロジー アンド リサーチ | デジタルデータストリームの送信方法及び送信機、並びにデジタルデータストリームの受信方法及び受信機 |
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 |
CN101015141B (zh) * | 2004-08-12 | 2010-12-08 | Lg电子株式会社 | 无线通信系统专用服务的接收 |
US20060218459A1 (en) | 2004-08-13 | 2006-09-28 | David Hedberg | Coding systems and methods |
US20060039332A1 (en) * | 2004-08-17 | 2006-02-23 | Kotzin Michael D | Mechanism for hand off using subscriber detection of synchronized access point beacon transmissions |
US7515644B2 (en) | 2004-08-17 | 2009-04-07 | Samsung Electronics Co., Ltd | Apparatus and method for space-time-frequency block coding for increasing performance |
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 |
US7978778B2 (en) | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
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 |
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 |
WO2006034577A1 (en) | 2004-09-30 | 2006-04-06 | 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 |
GB2419788B (en) | 2004-11-01 | 2007-10-31 | Toshiba Res Europ Ltd | Interleaver and de-interleaver systems |
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 |
DK1829262T3 (en) | 2004-11-16 | 2018-06-06 | Qualcomm Inc | CLOSED LOOP SPEED CONTROL FOR A MIMO COMMUNICATION SYSTEM |
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 |
EP1820287A4 (en) | 2004-12-08 | 2012-07-11 | Korea Electronics Telecomm | Transmitter, receiver and method for controlling a system with multiple inputs and outputs |
US7940710B2 (en) | 2004-12-22 | 2011-05-10 | Qualcomm Incorporated | Methods and apparatus for efficient paging in a wireless communication system |
US7543197B2 (en) | 2004-12-22 | 2009-06-02 | Qualcomm Incorporated | Pruned bit-reversal interleaver |
US8238923B2 (en) | 2004-12-22 | 2012-08-07 | Qualcomm Incorporated | Method of using shared resources in a communication system |
CA2725658C (en) | 2004-12-22 | 2014-07-08 | 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 |
CN103731924B (zh) | 2005-01-18 | 2017-03-01 | 夏普株式会社 | 发送装置以及接收装置 |
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 |
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 |
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 |
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 |
US9143305B2 (en) | 2005-03-17 | 2015-09-22 | 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 |
US9461859B2 (en) | 2005-03-17 | 2016-10-04 | 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 |
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 |
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 |
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 |
US8842693B2 (en) | 2005-05-31 | 2014-09-23 | Qualcomm Incorporated | Rank step-down for MIMO SCW design employing HARQ |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
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 |
US8599945B2 (en) | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US8503371B2 (en) | 2005-06-16 | 2013-08-06 | Qualcomm Incorporated | Link assignment messages in lieu of assignment acknowledgement messages |
US20070071147A1 (en) | 2005-06-16 | 2007-03-29 | Hemanth Sampath | Pseudo eigen-beamforming with dynamic beam selection |
US8098667B2 (en) | 2005-06-16 | 2012-01-17 | Qualcomm Incorporated | Methods and apparatus for efficient providing of scheduling information |
US8254924B2 (en) | 2005-06-16 | 2012-08-28 | Qualcomm Incorporated | Method and apparatus for adaptive registration and paging area determination |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8750908B2 (en) | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
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 |
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 |
US7508842B2 (en) | 2005-08-18 | 2009-03-24 | Motorola, Inc. | Method and apparatus for pilot signal transmission |
KR101285231B1 (ko) | 2005-08-18 | 2013-07-11 | 비씸 커뮤니케이션즈 아이엔씨. | 통신 시스템에서의 안테나 가상화 |
WO2007024214A1 (en) | 2005-08-19 | 2007-03-01 | Mitsubishi Electric Research Laboratories | Optimal signaling and selection verification for transmit antenna selection with erroneous feedback |
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 |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
RU2407179C2 (ru) | 2005-08-24 | 2010-12-20 | Квэлкомм Инкорпорейтед | Переменные интервалы времени передачи для системы радиосвязи |
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 |
WO2007045101A2 (en) * | 2005-10-21 | 2007-04-26 | Nortel Networks Limited | Multiplexing schemes for ofdma |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US20070165738A1 (en) | 2005-10-27 | 2007-07-19 | Barriac Gwendolyn D | Method and apparatus for pre-coding for a mimo 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 |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
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 |
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 |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
US8891457B2 (en) | 2005-12-08 | 2014-11-18 | Apple Inc. | Resource assignment systems and methods |
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 |
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 |
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 |
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 |
US8259695B2 (en) | 2007-04-30 | 2012-09-04 | Alcatel Lucent | Method and apparatus for packet wireless telecommunications |
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 |
US20090180459A1 (en) | 2008-01-16 | 2009-07-16 | Orlik Philip V | OFDMA Frame Structures for Uplinks in MIMO Networks |
KR101563032B1 (ko) | 2008-08-12 | 2015-10-23 | 노오텔 네트웍스 리미티드 | 무선 통신 네트워크에서의 다운링크 투명 중계를 가능하게 하는 방법 |
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 |
JP2010210000A (ja) | 2009-03-10 | 2010-09-24 | Susumu Murakami | 水中軸と軸受け |
US20100232384A1 (en) | 2009-03-13 | 2010-09-16 | Qualcomm Incorporated | Channel estimation based upon user specific and common reference signals |
KR200471652Y1 (ko) | 2013-08-07 | 2014-03-12 | 남경탁 | 의자 일체형 가구 |
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2004
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2005
- 2005-12-22 CA CA002592304A patent/CA2592304A1/en not_active Abandoned
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- 2005-12-22 WO PCT/US2005/046742 patent/WO2006069300A2/en active Application Filing
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- 2005-12-22 RU RU2007127884/09A patent/RU2406235C2/ru not_active IP Right Cessation
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- 2005-12-22 EP EP05855325A patent/EP1832031A2/en not_active Withdrawn
- 2005-12-22 JP JP2007548510A patent/JP2008526122A/ja not_active Ceased
- 2005-12-22 KR KR1020077016770A patent/KR100933153B1/ko not_active IP Right Cessation
- 2005-12-22 CN CN200580048523.2A patent/CN101124760A/zh active Pending
- 2005-12-22 MX MX2007007770A patent/MX2007007770A/es active IP Right Grant
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2007
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101594223B (zh) * | 2008-05-29 | 2012-03-14 | 展讯通信(上海)有限公司 | 无线收发方法及其设备 |
CN101719817B (zh) * | 2008-10-10 | 2013-10-30 | 展讯通信(上海)有限公司 | 高速移动场景下的无线收发方法及设备 |
Also Published As
Publication number | Publication date |
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RU2406235C2 (ru) | 2010-12-10 |
AR052442A1 (es) | 2007-03-21 |
JP2008526122A (ja) | 2008-07-17 |
KR20070087188A (ko) | 2007-08-27 |
NZ555996A (en) | 2010-05-28 |
EP1832031A2 (en) | 2007-09-12 |
MX2007007770A (es) | 2007-11-09 |
ZA200705476B (en) | 2009-05-27 |
BRPI0519542A2 (pt) | 2009-02-25 |
AU2005319084B2 (en) | 2010-01-07 |
IL184056A0 (en) | 2007-10-31 |
AU2005319084A1 (en) | 2006-06-29 |
KR100933153B1 (ko) | 2009-12-21 |
RU2007127884A (ru) | 2009-01-27 |
WO2006069300A2 (en) | 2006-06-29 |
US20060133521A1 (en) | 2006-06-22 |
US9148256B2 (en) | 2015-09-29 |
NO20073180L (no) | 2007-09-18 |
TW200637229A (en) | 2006-10-16 |
CA2592304A1 (en) | 2006-06-29 |
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