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    • 1. 发明申请
    • METHOD OF ASSIGNING PRECODING VECTORS IN A MOBILE CELLULAR NETWORK
    • WO2010006845A3
    • 2010-01-21
    • PCT/EP2009/057052
    • 2009-06-08
    • ALCATEL LUCENTOHM, MichaelSCHOENERSTEDT, Lutz
    • OHM, MichaelSCHOENERSTEDT, Lutz
    • H04B7/04H04B7/06
    • The invention concerns a method for assigning precoding vectors in a mobile cellular network as well as a base station (21). A base station (21) provides a code book comprising indexed precoding vectors to one or more mobile stations (41, 42, 43) associated with the base station (21) via a downlink channel (1001, 2001, 3001). A mobile station (41, 42, 43) associated with the base station (21) selects one or more indices of preferred precoding vectors from the code book and reports the indices of the one or more preferred precoding vectors to the base station (21) via an uplink channel (1002, 2002, 3002). The mobile station (41, 42, 43) selects one or more indices of preferred companion precoding vectors from the code book, which are precoding vectors that shall preferably be used by the base station (21) for other mobile stations served by the base station (21) on the same time/frequency resource, and reports the one or more indices associated with the preferred companion precoding vectors to the base station (21) via the uplink channel (1002, 2002, 3002). For each mobile station associated with the base station (21), the base station (21) determines a precoding vector based on the reported one or more indices of the preferred precoding vectors and based on the reported one or more indices of the preferred companion precoding vectors.
    • 3. 发明申请
    • METHOD OF REDUCING INTRA-CELL SPATIAL INTERFERENCE IN A MOBILE CELLULAR NETWORK
    • 降低移动细胞网络中细胞间空间干扰的方法
    • WO2010000568A1
    • 2010-01-07
    • PCT/EP2009/057026
    • 2009-06-08
    • ALCATEL LUCENTOHM, MichaelSCHOENERSTEDT, Lutz
    • OHM, MichaelSCHOENERSTEDT, Lutz
    • H04B7/04H04B7/06
    • H04B7/0452H04B7/0697
    • The present invention relates to a method of and a base station for reducing intra-cell spatial interference in a mobile cellular network. The technical field of the present invention is directed to cellular systems or wireless data systems, in which a base station (BS = base station) serves a number of mobile stations (MS = mobile station) on the same time/frequency resources by means of a MU-MIMO system (MU = multiple user, MIMO = multiple input multiple output). The MU-MIMO system is a system wherein a base station comprises N ≥ 2 transmit antennas and serves a number of mobile stations on the same time/frequency resources. In order to allow each mobile station to receive only data streams intended for the mobile station, the base station has to apply certain antenna weights, also called precoding vectors, to the data streams that the base station transmits to the mobile stations.
    • 本发明涉及一种用于减少移动蜂窝网络中小区内空间干扰的方法和基站。 本发明的技术领域涉及蜂窝系统或无线数据系统,其中基站(BS =基站)以相同的时间/频率资源为多个移动站(MS =移动站)服务,借助于 MU-MIMO系统(MU =多用户,MIMO =多输入多输出)。 MU-MIMO系统是其中基站包括N = 2个发射天线并且在相同时间/频率资源上服务多个移动台的系统。 为了允许每个移动台仅接收针对移动台的数据流,基站必须将某些天线权重(也称为预编码向量)应用于基站向移动台发送的数据流。
    • 7. 发明申请
    • SELECTION OF PRECODING VECTORS FOR RADIO BASE STATION WITH MULTIPLE ANTENNAS
    • 选择具有多个天线的无线基站的预测矢量
    • WO2010060683A1
    • 2010-06-03
    • PCT/EP2009/063466
    • 2009-10-15
    • Alcatel LucentJUNG, PeterSCHRECK, JanOHM, MichaelWUNDER, Gerhard
    • JUNG, PeterSCHRECK, JanOHM, MichaelWUNDER, Gerhard
    • H04B7/06
    • H04B7/0626H04J11/0033H04L5/0023H04L5/0037H04L5/0048H04L5/006H04L5/0064H04L25/03343H04L2025/03414H04L2025/03426H04L2025/03802
    • The invention relates to a method for resource allocation in a radio communication system (RCS). The radio communication system (RCS) comprises a base station (BS) and at least one mobile station (MS1, MS2). The base station (BS) comprises a first antenna system (AS1) with at least two antenna elements (AE1, AE2). The base station (BS) and the at least one mobile station (MS1, MS2) comprise a codebook. The method comprises the steps of transmitting (M1/1 ) reference signals (RS) from the base station (BS) to the at least one mobile station (MS1, MS2) and determining (M1 /3) first feedback information (FBI1, FBI2) by the at least one mobile station (MS1, MS2), wherein the feedback information (FBI 1, FBI2) comprises a first component (CO1) indicating at least one system description approximating a characteristic of a transmission channel (TC1, TC2) between the base station (BS) and the at least one mobile station (MS1, MS2) and wherein the method further comprises the step of selecting (M1 /6) at the base station (BS) a first pre-coding vector of the codebook for the at least one mobile station (MS1, MS2) based on the first feedback information (FBI1, FBI2).
    • 本发明涉及无线电通信系统(RCS)中的资源分配方法。 无线电通信系统(RCS)包括基站(BS)和至少一个移动站(MS1,MS2)。 基站(BS)包括具有至少两个天线元件(AE1,AE2)的第一天线系统(AS1)。 基站(BS)和至少一个移动站(MS1,MS2)包括码本。 该方法包括以下步骤:从基站(BS)向至少一个移动台(MS1,MS2)发送(M1 / 1)参考信号(RS),并确定(M1 / 3)第一反馈信息(FBI1,FBI2 ),其中所述反馈信息(FBI1,FBI2)包括指示接近传输信道(TC1,TC2)的特性的至少一个系统描述的第一组件(CO1) 所述基站(BS)和所述至少一个移动站(MS1,MS2),并且其中所述方法还包括在所述基站(BS)处选择(M1 / 6)所述码本的第一预编码向量的步骤, 所述至少一个移动站(MS1,MS2)基于所述第一反馈信息(FBI1,FBI2)。
    • 8. 发明申请
    • SYSTEMS AND METHOD FOR PROVIDING IN-FLIGHT BROADBAND MOBILE COMMUNICATION SERVICES
    • 提供飞行宽带移动通信服务的系统和方法
    • WO2010025997A1
    • 2010-03-11
    • PCT/EP2009/059465
    • 2009-07-23
    • ALCATEL LUCENTOHM, MichaelWILD, ThorstenSCHMIDT, Michael
    • OHM, MichaelWILD, ThorstenSCHMIDT, Michael
    • H04B7/185
    • H04B7/18506H04B7/185H04B7/26
    • The invention relates to a ground-based wireless cellular communication system (1a) for providing in-flight broadband mobile communication services, comprising: at least one ground-based base station (2) adapted for generating at least one cell (C1, C2) defining a solid angle of the space surrounding the base station (2), the ground- based base station (2) further comprising at least one antenna array (5a, 5a) using two-dimensional-beamforming for generating at least one beam (6a-c, 7a-c) for serving at least one airplane (8a-c, 8c-e) in the space covered by the at least one cell (C1, C2) using spatial-division multiple access, SDMA. The invention also relates to an airplane equipment for providing in-flight broadband mobile communication services, comprising: at least one antenna for exchange of user data with the ground-based wireless cellular communication system (1a), a transceiver unit connected to the at least one antenna for handling the air-to-ground and ground-to-air communication with the ground-based wireless cellular communication system (1a), and an inside-airplane communication system for distributing the user data to and from terminals within the airplane.
    • 本发明涉及一种用于提供飞行中宽带移动通信业务的地面无线蜂窝通信系统(1a),包括:适于生成至少一个小区(C1,C2)的至少一个基于地面的基站(2) 定义基站(2)周围的空间的立体角,所述地基基站(2)还包括使用二维波束形成的至少一个天线阵列(5a,5a),用于产生至少一个波束(6a -c,7a-c),用于使用空分多址(SDMA)在由至少一个小区(C1,C2)覆盖的空间中服务至少一个飞机(8a-c,8c-e)。 本发明还涉及一种用于提供飞行中宽带移动通信服务的飞机设备,包括:用于与地面无线蜂窝通信系统(1a)交换用户数据的至少一个天线,至少连接到该无线蜂窝通信系统 用于处理与地面无线蜂窝通信系统(1a)的空对地和地对空通信的一个天线,以及用于将用户数据分发到飞机内的终端的飞机内通信系统。
    • 10. 发明申请
    • EXTENDING SDMA BY POWER LOADING FOR SPATIALLY NON-SEPARABLE USERS
    • 通过电力负载来扩展SDMA,用于空间不可分割的用户
    • WO2010124928A1
    • 2010-11-04
    • PCT/EP2010/054780
    • 2010-04-13
    • ALCATEL LUCENTWILD, ThorstenOHM, MichaelSCHOENERSTEDT, Lutz
    • WILD, ThorstenOHM, MichaelSCHOENERSTEDT, Lutz
    • H04B7/04
    • H04B7/0617H04B7/0408H04B7/0697H04L1/0606H04L1/0618H04L2001/0092
    • The invention relates to a method for performing downstream transmissions in a wireless communications network (1 ), the method comprising: selecting at least a first and a second mobile station (MS1,MS2 ) in at least one of a plurality of beams (B 1 (i) to B 4 (i) of a communications cell (B j ) using space-division multiple access, SDMA, the first mobile station (MS1) having higher Signal to Interference and Noise Ratio, SINR, than the second mobile station (MS2), generating a downstream signal (b 1 (j) ) by combining a first data signal (d 1 (j) ) for the first mobile station (MS1 ) with a second data signal (d 2 (j) ) for the second mobile station (MS2) using non-zero amplitude scaling factors (f 1,1 (j) , f 2,1 (j) , transmitting the downstream signal (b 1 (j) ) from a base station (BS j ) of the communications cell (B j ) to the first and second mobile stations (MS1, MS2), in the first mobile station (MS1 ), before recovering the first data signal (d 1 (j) ) from the transmitted downstream signal, removing the contribution of the second data signal (d 2 (j) ) from the transmitted downstream signal, preferably by using non-linear interference cancellation, and in the second mobile station (MS2), recovering the second data signal (d 2 (j) ) from the transmitted downstream signal treating the contribution of the first data signal (d 1 (j) ) as noise. The invention also relates to a communications cell (B j ) as well as to a communications network.
    • 本发明涉及一种用于在无线通信网络(1)中执行下行传输的方法,所述方法包括:在至少一个波束(B1(...)中选择第一和第二移动站 i)到具有比第二移动站(MS2)更高的信干比噪声比的第一移动站(MS1)的空分多址(SDMA)的通信小区(Bj)的B4(i) 通过将用于第一移动站(MS1)的第一数据信号(d1(j))与第二移动站(MS2)的第二数据信号(d2(j))组合,生成下行信号(b1(j)) 将来自通信小区(Bj)的基站(BSj)的下行信号(b1(j))发送到第一和第二通信单元(B1j)的非零幅度缩放因子(f1,1(j),f2,1(j) 在从所发送的下行信号恢复第一数据信号(d1(j))之前,在第一移动站(MS1)中的移动站(MS1,MS2) 优选地通过使用非线性干扰消除来发送来自所发送的下行信号的第二数据信号(d2(j))的贡献,并且在第二移动台(MS2)中,恢复第二数据信号(d2(j)), 从发送的下行信号处理第一数据信号(d1(j))的贡献作为噪声。 本发明还涉及通信小区(Bj)以及通信网络。