Adaptive modulation and coding in a SC-FDMA system
    1.
    发明授权
    Adaptive modulation and coding in a SC-FDMA system 有权
    SC-FDMA系统中的自适应调制和编码

    公开(公告)号:US08605664B2

    公开(公告)日:2013-12-10

    申请号:US12517152

    申请日:2007-11-22

    IPC分类号: H04W4/00

    摘要: 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).

    摘要翻译: 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)分解为多个数据子流 (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); 经由子载波映射模块(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,从而对于每个数据子流 ,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的值来选择所选择的编码调制方案(BPSK,QPSK,16-QAM) 。

    ADAPTIVE MODULATION AND CODING IN A SC-FDMA SYSTEM
    2.
    发明申请
    ADAPTIVE MODULATION AND CODING IN A SC-FDMA SYSTEM 有权
    SC-FDMA系统中的自适应调制和编码

    公开(公告)号:US20100002575A1

    公开(公告)日:2010-01-07

    申请号:US12517152

    申请日:2007-11-22

    IPC分类号: H04J11/00 H04L23/02 H04W72/04

    摘要: 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).

    摘要翻译: 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)分解为多个数据子流 (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); 经由子载波映射模块(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,从而对于每个数据子流 ,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的值来选择所选择的编码调制方案(BPSK,QPSK,16-QAM) 。

    Method, system and radio station for interference cancellation
    5.
    发明授权
    Method, system and radio station for interference cancellation 有权
    用于干扰消除的方法,系统和无线电台

    公开(公告)号:US08995917B2

    公开(公告)日:2015-03-31

    申请号:US12225436

    申请日:2007-02-08

    IPC分类号: H04B1/00 H04B15/00 H04B1/12

    CPC分类号: H04B1/126

    摘要: A method detects a first baseband signal sent by a first sending station via an air interface to a first radio station of a radio communications system. A first receive signal, which contains the first baseband signal superposed with at least a second baseband signal sent by a second sending station to a second radio station, is received by the first radio station. The first radio station uses at least a second receive signal received by the second radio station for detection of the first baseband signal. The second receive signal contains at least the second baseband signal, and is used to at least partially cancel the interference in the first receive signal caused by the second baseband signal.

    摘要翻译: 一种方法是通过空中接口将第一发送站发送的第一基带信号检测到无线电通信系统的第一无线电台。 包含与由第二发送站发送到第二无线电台的至少第二基带信号叠加的第一基带信号的第一接收信号由第一无线电台接收。 第一无线电站使用由第二无线电台接收的至少第二接收信号来检测第一基带信号。 第二接收信号至少包含第二基带信号,并且用于至少部分地消除由第二基带信号引起的第一接收信号中的干扰。

    Method, System and Radio Station for Interference Cancellation
    6.
    发明申请
    Method, System and Radio Station for Interference Cancellation 有权
    干扰消除方法,系统和无线电台

    公开(公告)号:US20110033186A1

    公开(公告)日:2011-02-10

    申请号:US12225436

    申请日:2007-02-08

    IPC分类号: H04J14/02

    CPC分类号: H04B1/126

    摘要: A method detects a first baseband signal sent by a first sending station via an air interface to a first radio station of a radio communications system. A first receive signal, which contains the first baseband signal superposed with at least a second baseband signal sent by a second sending station to a second radio station, is received by the first radio station. The first radio station uses at least a second receive signal received by the second radio station for detection of the first baseband signal. The second receive signal contains at least the second baseband signal, and is used to at least partially cancel the interference in the first receive signal caused by the second baseband signal.

    摘要翻译: 一种方法是通过空中接口将第一发送站发送的第一基带信号检测到无线电通信系统的第一无线电台。 包含与由第二发送站发送到第二无线电台的至少第二基带信号叠加的第一基带信号的第一接收信号由第一无线电台接收。 第一无线电站使用由第二无线电台接收的至少第二接收信号来检测第一基带信号。 第二接收信号至少包含第二基带信号,并且用于至少部分地消除由第二基带信号引起的第一接收信号中的干扰。

    Precoding in Telecommunication Network
    8.
    发明申请
    Precoding in Telecommunication Network 有权
    电信网络中的预编码

    公开(公告)号:US20110280163A1

    公开(公告)日:2011-11-17

    申请号:US13146095

    申请日:2009-01-26

    IPC分类号: H04W80/00 H04J3/00

    摘要: It is described a method for compensating interference effects within a telecommunication network including at least a first base station and a second base station, which serve in a cooperative manner a first user equipment and a second user equipment by using time division duplex. The method is applied in an operational state, in which the first base station is in a downlink mode and the second base station is in an uplink mode. The method includes (a) determining at least one of a first channel state information between the first base station and the second base station and a second channel state information between the first user equipment and the second user equipment, (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 and/or by the second base station. 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.

    摘要翻译: 描述了一种用于补偿包括至少第一基站和第二基站的电信网络内的干扰效应的方法,所述第一基站和第二基站通过使用时分双工以协作方式服务于第一用户设备和第二用户设备。 该方法应用于其中第一基站处于下行链路模式并且第二基站处于上行链路模式的操作状态。 该方法包括:(a)确定第一基站和第二基站之间的第一信道状态信息和第一用户设备与第二用户设备之间的第二信道状态信息中的至少一个,(b)基于数据信号编码 在第一和/或第二信道状态信息上,以及(c)由第一基站和/或由第二基站发送编码的数据信号。 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。

    Precoding in telecommunication network
    9.
    发明授权
    Precoding in telecommunication network 有权
    电信网络中的预编码

    公开(公告)号:US08897275B2

    公开(公告)日:2014-11-25

    申请号:US13146095

    申请日:2009-01-26

    IPC分类号: H04J3/00 H04L25/03 H04L5/00

    摘要: It is described a method for compensating interference effects within a telecommunication network including at least a first base station and a second base station, which serve in a cooperative manner a first user equipment and a second user equipment by using time division duplex. The method is applied in an operational state, in which the first base station is in a downlink mode and the second base station is in an uplink mode. The method includes (a) determining at least one of a first channel state information between the first base station and the second base station and a second channel state information between the first user equipment and the second user equipment, (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 and/or by the second base station. 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.

    摘要翻译: 描述了一种用于补偿包括至少第一基站和第二基站的电信网络内的干扰效应的方法,所述第一基站和第二基站通过使用时分双工以协作方式服务于第一用户设备和第二用户设备。 该方法应用于其中第一基站处于下行链路模式并且第二基站处于上行链路模式的操作状态。 该方法包括:(a)确定第一基站和第二基站之间的第一信道状态信息和第一用户设备与第二用户设备之间的第二信道状态信息中的至少一个,(b)基于数据信号编码 在第一和/或第二信道状态信息上,以及(c)由第一基站和/或由第二基站发送编码的数据信号。 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。

    Method and communication system for transmitting data in a multiple-input multiple-output (MIMO) system
    10.
    发明授权
    Method and communication system for transmitting data in a multiple-input multiple-output (MIMO) system 有权
    用于在多输入多输出(MIMO)系统中发送数据的方法和通信系统

    公开(公告)号:US08494077B2

    公开(公告)日:2013-07-23

    申请号:US12988020

    申请日:2009-04-16

    IPC分类号: H04B7/02

    摘要: Method for transmitting data in a Multiple-Input Multiple-Output (MIMO) system and communication system for transmitting data in a MIMO system. A method for transmitting data in a communication system is provided. The method includes the steps of selecting a first channel (C1) and a second channel (C2), of receiving by the second receiver (Rx2) of first data and frequency resource information, of performing a non-linear pre-coding for second data (D2) of the second channel (x2) and of sending the precoded second data (D2) from the second transmitter (Tx2) to the second receiver (Rx2) and sending the first non-pre-coded data (D1) of the first channel (C1) from a first transmitter (Tx1) to a first receiver (Rx1) at the same timeframe.

    摘要翻译: 用于在MIMO系统中发送数据的多输入多输出(MIMO)系统和通信系统中发送数据的方法。 提供一种在通信系统中发送数据的方法。 该方法包括以下步骤:选择由第二接收机(Rx2)接收第一数据和频率资源信息的第一信道(C1)和第二信道(C2),以对第二数据执行非线性预编码 (D2),并且将预编码的第二数据(D2)从第二发送器(Tx2)发送到第二接收器(Rx2),并且发送第一信号(x2)的第一非预编码数据 信道(C1)在同一时间帧从第一发射机(Tx1)到第一接收机(Rx1)。