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    • 21. 发明申请
    • ADAPTIVE MODULATION AND CODING IN A SC-FDMA SYSTEM
    • SC-FDMA系统中的自适应调制和编码
    • WO2008064819A1
    • 2008-06-05
    • PCT/EP2007/010146
    • 2007-11-22
    • NOKIA SIEMENS NETWORKS GMBH & CO. KGEICHINGER, Josef, MartinGAO, YanHALFMANN, RüdigerHAUSTEIN, ThomasRAAF, BernhardSCHULZ, EgonZIRWAS, Wolfgang
    • EICHINGER, Josef, MartinGAO, YanHALFMANN, RüdigerHAUSTEIN, ThomasRAAF, BernhardSCHULZ, EgonZIRWAS, Wolfgang
    • H04L1/00H04L27/26
    • H04L5/006H04L5/0007H04L5/0046H04L27/0008H04L27/183H04L27/2636H04L27/3488
    • A method and a system for transmitting data by a transmitter over a channel having a predetermined channel quality estimate, comprises the steps of splitting (S2P) input data stream (S40, S60, S80) to be transmitted into a plurality of data sub-streams (S40a, S40b, S40c); processing (SYM1, SYM2, SYMj) each of the plurality of data sub-streams (S40a, S40b, S40c) into a plurality of symbol subsets (S41, S42, S43) by selecting a certain scheme of coded-modulation (BPSK, QPSK, 16-QAM); processing, separately, each of the plurality of symbol subsets (S41, S42, S43), via a plurality of separate Discrete Fourier Transforms (DFT1, DFT2, DFT3), herein after denoted as DFTs, to obtain a plurality of DFT-precoded data sub-streams (S44, S45, S46); allocating each DFT-precoded data sub-stream (S44, S45, S46) in a frequency resource block (RB1, RB2, RB3), via a sub-carrier mapping module (SCM), so that for each data sub-stream (S40a, S40b, S40c) the selected scheme of coded-modulation (BPSK, QPSK, 16-QAM) is chosen in dependence of the values of the channel quality estimate at the frequencies of its own allocated frequency resource block (RB1, RB2, RB3).
    • 一种用于通过具有预定信道质量估计的信道通过发射机发送数据的方法和系统包括以下步骤:将要发送的(S2P)输入数据流(S40,S60,S80)分割成多个数据子流 (S40a,S40b,S40c); 通过选择一定的编码调制方式(BPSK,QPSK),将多个数据子流(S40a,S40b,S40c)中的每一个处理(SYM1,SYM2,SYMj)分割成多个符号子集(S41,S42,S43) ,16-QAM); 分别经由多个分离离散傅里叶变换(DFT1,DFT2,DFT3)中的多个符号子集(S41,S42,S43)中的每一个表示为DFT,以获得多个DFT预编码数据 子流(S44,S45,S46); 通过子载波映射模块(SCM)将每个DFT预编码数据子流(S44,S45,S46)分配到频率资源块(RB1,RB2,RB3)中,使得对于每个数据子流 ,S40b,S40c)根据在其自己分配的频率资源块(RB1,RB2,RB3)的频率处的信道质量估计值来选择所选择的编码调制方案(BPSK,QPSK,16-QAM) 。
    • 28. 发明申请
    • PRECODING IN TELECOMMUNICATION NETWORK
    • 电信网络预测
    • WO2010083892A1
    • 2010-07-29
    • PCT/EP2009/050856
    • 2009-01-26
    • NOKIA SIEMENS NETWORKS OYHAUSTEIN, ThomasSCHULZ, EgonZIRWAS, Wolfgang
    • HAUSTEIN, ThomasSCHULZ, EgonZIRWAS, Wolfgang
    • H04L25/03H04L5/00
    • H04L25/03343H04L5/0032H04L2025/03426
    • It is described a method for compensating interference effects within a telecommunication network (100) comprising at least a first base station (BS1) and a second base station (BS2), which serve in a cooperative manner a first user equipment (UE1) and a second user equipment (UE2) by using time division duplex. The method is applied in an operational state, in which the first base station (BS1) is in a downlink mode and the second base station (BS2) is in an uplink mode. The method comprises (a) determining at least one of a first channel state information between the first base station (BS1) and the second base station (BS2) and a second channel state information between the first user equipment (UE1) and the second user equipment (UE2), (b) encoding data signals based on the first and/or the second channel state information, and (c) transmitting the encoded data signals by the first base station (BS1) and/or by the second base station (BS2). It is further described a telecommunication network, a program element and a computer readable medium, which are adapted to carry out or control the described method.
    • 描述了一种用于补偿电信网络(100)内的干扰效应的方法,所述电信网络(100)包括至少第一基站(BS1)和第二基站(BS2),其以协作方式服务于第一用户设备(UE1)和 第二用户设备(UE2)。 该方法应用于第一基站(BS1)处于下行链路模式并且第二基站(BS2)处于上行链路模式的操作状态。 该方法包括:(a)确定第一基站(BS1)和第二基站(BS2)之间的第一信道状态信息和第一用户设备(UE1)与第二用户之间的第二信道状态信息中的至少一个 设备(UE2),(b)基于第一和/或第二信道状态信息对数据信号进行编码,以及(c)由第一基站(BS1)和/或由第二基站 BS2)。 进一步描述适于执行或控制所述方法的电信网络,程序元件和计算机可读介质。