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    • 1. 发明申请
    • SERVICE TYPE SELECTION IN WIRELESS NETWORK
    • 无线网络中的服务类型选择
    • WO2013066346A1
    • 2013-05-10
    • PCT/US2011/059353
    • 2011-11-04
    • NOKIA CORPORATIONKASSLIN, MikaKAFLE, Padam LalVARSHNEY, PrabodhNOKIA INC.
    • KASSLIN, MikaKAFLE, Padam LalVARSHNEY, Prabodh
    • H04W36/00
    • H04W36/36H04W16/14H04W48/18
    • This document discloses methods, apparatuses, and computer programs for selecting and providing a terminal apparatus of a wireless network with services. The terminal apparatus selects a wireless apparatus to provide the terminal apparatus with at least a first service. Then, it causes transmission of an association request to the wireless apparatus, wherein the association request comprises at least one information element indicating whether the request relates to provision of the first service without a second service or to provision of both the first service and a second service, wherein the second service is different from the first service and is subjected to the presence of the first service. Upon approval acquired from the wireless apparatus, the at least said first service is received from the wireless apparatus.
    • 本文件公开了用于选择和提供具有服务的无线网络终端装置的方法,装置和计算机程序。 终端装置选择无线装置,为终端装置提供至少第一服务。 然后,它将关联请求发送到无线装置,其中关联请求包括至少一个信息元素,指示该请求是否涉及提供第一服务而不进行第二服务,或者提供第一服务和第二服务 服务,其中所述第二服务不同于所述第一服务并且受到所述第一服务的存在。 在从无线装置获得批准的情况下,从无线装置接收至少所述第一服务。
    • 5. 发明申请
    • MULTIPLE-ANTENNA PARTIALLY COHERENT CONSTELLATIONS FOR MULTI-CARRIER SYSTEMS
    • 多载波系统的多天线部分密切协商
    • WO2005043788A2
    • 2005-05-12
    • PCT/IB2004/003455
    • 2004-10-21
    • NOKIA CORPORATIONNOKIA, INC.BORRAN, Mohammed, J.VARSHNEY, PrabodhLILLEBERG, Jorma
    • BORRAN, Mohammed, J.VARSHNEY, PrabodhLILLEBERG, Jorma
    • H04L
    • H04L27/34H04L1/0625H04L1/0631H04L1/0656
    • A multi-level space time signal constellation that is optimized for use with a multi-carrier, multi-path communication scheme includes points on a first level separated from points on a mutually exclusive second level by a minimum distance that is based on a conditional probability distribution, preferably a Kullback-Leibler (KL) distance. Points within one level may be separated by a Euclidean distance, but spherical levels are rotated relative to one another to maximize a minimum inter-level KL distance. A receiver uses pilot symbols to estimate the channels and two-stage symbol detection, determining in one stage the constellation level and in another stage the point in the level. The receiver calculates a likelihood function based on a conditional distribution which does not reduce to the Euclidean-based nearest-neighbor detector. A single stored constellation may be scaled based on received signal to noise ratio. Each constellation defines n=2M real dimensions, wherein M is the number of transmit antennas.
    • 优化用于多载波多路径通信方案的多级时空信号星座包括在相互排斥的第二级别上的点之间的第一级上的点与基于条件概率的最小距离的点 分布,最好是Kullback-Leibler(KL)距离。 一个级别内的点可以通过欧几里德距离分开,但是球面水平相对于彼此旋转以使最小跨越距离KL距离最大化。 接收机使用导频符号来估计信道和两级符号检测,在一个阶段中确定星座级别,在另一级中确定该级别中的点。 接收机基于不减少到基于欧几里德的最近邻检测器的条件分布来计算似然函数。 可以基于接收到的信噪比来缩放单个存储的星座。 每个星座定义n = 2M个实际维度,其中M是发射天线的数量。
    • 9. 发明申请
    • PARTIALLY COHERENT CONSTELLATIONS FOR MULTIPLE-ANTENNA SYSTEMS
    • 多天线系统的部分相互协调
    • WO2004107768A2
    • 2004-12-09
    • PCT/IB2004/001566
    • 2004-05-14
    • NOKIA CORPORATIONNOKIA INC.
    • BORRAN, Mohammad, JaberSABHARWAL, AshutoshAAZHANG, BehnaamVARSHNEY, Prabodh
    • H04Q
    • H04L25/0202H04L1/0612H04L27/3427
    • A signal constellation for a multiple input/multiple output (MIMO) communication system when channel knowledge at the receiver is imperfect includes at least two (n-1)-dimensional sub-constellations of points that together form an n­dimensional constellation, the number n representing real dimensions and n=2M where M is the number of transmit antennas. The n-dimensional spherical constellation may define a single sphere or a plurality of concentric subset spheres, and points between subsets are separated by a Kullback-Leibler distance rather than a Euclidian distance. Each sphere has sub-constellations that preferably are arranged in symmetric pairs that define equal numbers of points that lie in parallel planes, to allow recursive construction that minimizes computational complexity. An appropriate constellation may be chosen by ceasing a search once the optimum minimum distance stops increasing as a number of the concentric levels increases.
    • 当接收机的信道知识不完美时,用于多输入/多输出(MIMO)通信系统的信号星座包括一起形成一个维数星座的至少两个(n-1)个维度的星座,数字n表示 实际尺寸,n = 2M,其中M是发射天线的数量。 n维球形星座可以定义单个球体或多个同心子集球体,并且子集之间的点由Kullback-Leibler距离而不是欧几里得距离分开。 每个球体具有优选以对称对布置的子星座,其限定位于平行平面中的相等数量的点,以允许最小化计算复杂度的递归构造。 一旦适当的星座可以通过停止搜索,一旦最佳最小距离随着同心级数的增加而停止增加。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR RECEIVING A CDMA SIGNAL
    • 用于接收CDMA信号的方法和装置
    • WO2004079932A2
    • 2004-09-16
    • PCT/US2004/007043
    • 2004-03-05
    • NOKIA CORPORATIONPAPADIMITRIOU, PanayiotisVARSHNEY, PrabodhBORRAN, Mohammad, J.
    • PAPADIMITRIOU, PanayiotisVARSHNEY, PrabodhBORRAN, Mohammad, J.
    • H04B
    • H04L25/03038H04B1/71055H04B1/71075H04B1/7115H04B7/0669H04B7/0891H04L1/0618
    • A hybrid receiver (606), and an associated method, for receiving a radio signal carrying transmitted data that is subject to distortion in the transmission channel. The receiver includes a plurality of stages that perform parallel interference cancellation (PIC) to establish successively more accurate estimates of the transmitted data, including a receiver first stage (611) being either a RAKE receiver or a linear minimum mean-square error (LMMSE) receiver, a second stage (620) including an LMMSE (626), and preferably a third stage (630) also including an LMMSE (636). Each stage processes the estimates of the transmitted signal provided by the stage preceding it to mitigate or eliminate as much transmission-channel interference as possible and prove a refined estimate for processing by subsequent stages. Improved channel estimation may be achieved by processing the pilot signal in similar fashion as well.
    • 一种混合接收机(606)和相关联的方法,用于接收承载传输信道中的失真的传输数据的无线电信号。 接收机包括执行并行干扰消除(PIC)的多个级,以建立对发射数据的连续更准确的估计,包括作为RAKE接收机的接收机第一级(611)或线性最小均方误差(LMMSE) 接收器,包括LMMSE(626)的第二级(620),并且优选地还包括LMMSE(636)的第三级(630)。 每个阶段处理由其之前的阶段提供的发送信号的估计,以减轻或消除尽可能多的传输信道干扰,并且证明后续阶段处理的精确估计。 可以通过以类似的方式处理导频信号来实现改进的信道估计。