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    A user selection apparatus for a mobile communication system
    2.
    发明公开
    A user selection apparatus for a mobile communication system 有权
    Benutzerauswahlvorrichtungfürein手机社区系统

    公开(公告)号：EP2131507A1

    公开(公告)日：2009-12-09

    申请号：EP08010375.7

    申请日：2008-06-06

    申请人： NTT DoCoMo, Inc.

    发明人： Guthy, Christian ,  Utschick, Wolfgang ,  Dietl, Guido ,  Nossek, Josef A.

    IPC分类号： H04B7/04

    CPC分类号： H04B7/0452

    摘要： A user selection apparatus (100) for being operative in a mobile communication system and for selecting a sub-group of users from a plurality of users for transmission, a user being adapted for communicating through a multiple-input-multiple-output (MIMO = Multiple-Input-Multiple-Output) radio channel. The user selection apparatus (100) comprises a pre-selector (110) for de-selecting a user having a transmission capacity measure which is higher than a transmission capacity measure of another user by a predetermined amount to obtain a pre-selection group not including the de-selected user, such that the pre-selection group comprises two users having two transmission capacity measures which are equal or different from each other by less than the pre-determined amount and a processor (115) for determining the sub-group of users for transmission based on the MIMO radio channels.

    摘要翻译： 一种用户选择装置，用于在移动通信系统中操作并用于从多个用户中选择一组用户进行传输，用户适于通过多输入多输出（MIMO = 多输入多输出）无线电信道。 用户选择装置（100）包括预选器（110），用于将具有高于另一用户的传输容量度量的传输容量测量的用户取消选择预定量以获得不包括的预选择组 所述未选择的用户，使得所述预选择组包括具有彼此相等或不同的两个传输容量度量的两个用户小于所述预定量，以及用于确定所述子组的子组的处理器（115） 基于MIMO无线电信道进行传输的用户。

    Sub channel allocation apparatus for allocating sub channels of a mimo radio channel
    3.
    发明公开
    Sub channel allocation apparatus for allocating sub channels of a mimo radio channel 有权
    Subkanalzuweisungsgerätfürdie Zuweisung vonSubkanäleneines MIMO-Funkkanals

    公开(公告)号：EP1965508A1

    公开(公告)日：2008-09-03

    申请号：EP07004388.0

    申请日：2007-03-02

    申请人： NTT DoCoMo Inc.

    发明人： Guthy, Christian ,  Utschick, Wolfgang ,  Nossek, Josef A. ,  Bauch, Gerhard

    IPC分类号： H04B7/04 ,  H04Q7/38

    CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064

    摘要： A sub channel allocation apparatus (100) for allocating sub channels of a MIMO radio channel to a plurality of users. The sub channel allocation apparatus (100) comprises a radio channel evaluator (110) for evaluating the MIMO radio channels for the plurality of users to determine a selection metric for a user, the selection metric being based on elements of a MIMO radio channel matrix of the user. The sub channel allocation apparatus (100) further comprises a pre-selector (120) for selecting a subgroup of the plurality of users based on the selection metrics, the selected users supporting a higher performance on a spatial sub channel than the non-selected users. The sub channel allocation apparatus (100) further comprises a sub channel allocator (130) responsive to the pre-selector (120) for allocating a sub channel to a selected user.

    摘要翻译： 一种用于向多个用户分配MIMO无线电信道的子信道的子信道分配装置（100）。 子信道分配装置（100）包括用于评估多个用户的MIMO无线电信道以确定用户的选择度量的无线电信道评估器（110），所述选择度量基于MIMO无线电信道矩阵的元素 用户。 子信道分配装置（100）还包括预选器（120），用于基于选择度量来选择多个用户的子组，所选择的用户在空间子信道上支持比未选择的用户更高的性能 。 子信道分配装置（100）还包括响应于预选器（120）的子信道分配器（130），用于向所选择的用户分配子信道。

    Method and apparatus for subchannel allocation
    8.
    发明公开
    Method and apparatus for subchannel allocation 有权
    Verfahren und Vorrichtung zur Zuweisung vonUnterträgern

    公开(公告)号：EP1863248A1

    公开(公告)日：2007-12-05

    申请号：EP06011426.1

    申请日：2006-06-01

    申请人： NTT DoCoMo Inc.

    发明人： Tejera, Pedro ,  Guthy, Christian ,  Utschick, Wolfgang ,  Nossek, Josef A. ,  Bauch, Gerhard

    IPC分类号： H04L27/26 ,  H04L25/02

    CPC分类号： H04W52/346 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0046 ,  H04L5/006 ,  H04L5/0064 ,  H04W52/42 ,  H04W72/02 ,  H04W72/0453

    摘要： The present invention presents a mechanism to incorporate quality of service constraints imposed by higher layers into the allocation of resources performed preferably in a multi-user-multi-carrier MIMO system. Quality of service constraints are given as fractions of rates that each user should obtain out of the resulting sum rate. Allocation of spatial and frequency dimensions is carried out according to the cooperative zero-forcing with successive encoding and successive allocation methods (CZF-SESAM). The inventive approach basically constitutes a means of forming allocation in each iteration of the CZF-SESAM taking into account prescribed quality of service constraints. The procedure consists of three basic steps. After all potential beam-forming vectors have been computed on each subcarrier at a certain iteration, first, preferably for each user, only the beam-forming vector is on each subcarrier selected that yields the highest channel gain. In the second step, considering the subchannel selected in the first step, capacity values are computed for every user and based on these capacity values and the quality of service constraints, the spectral share of each user is computed. Finally, the particular assignation of space-frequency dimensions is carried out by departing from a sum rate optimum allocation and modifying the initial allocation according to a minimum energy loss principle, in order to comply the spectral shares computed in a second step.

    摘要翻译： 本发明提出了一种机制，其将由更高层施加的服务质量约束并入优选地在多用户多载波MIMO系统中执行的资源的分配中。 服务质量约束被给出为每个用户从得到的和速率中获得的费率的分数。 根据具有连续编码和连续分配方法（CZF-SESAM）的协同零强制执行空间和频率维度的分配。 本发明的方法基本上构成了在CZF-SESAM的每次迭代中形成分配的手段，同时考​​虑到规定的服务质量约束。 该程序由三个基本步骤组成。 在所有可能的波束形成向量在每个子载波上在一定的迭代计算之后，首先，优选地，对于每个用户，只有波束形成向量在选择的每个子载波上产生最高的信道增益。 在第二步骤中，考虑在第一步骤中选择的子信道，为每个用户计算容量值，并且基于这些容量值和服务质量约束，计算每个用户的频谱份额。 最后，通过从和速率最优分配中脱离并根据最小能量损失原理修改初始分配来执行空间 - 频率维度的特定分配，以便符合在第二步骤中计算的频谱共享。

    Load-aware dynamic cell selection with interference coordination by fractional reuse for cellular multi-user networks
    9.
    发明公开
    Load-aware dynamic cell selection with interference coordination by fractional reuse for cellular multi-user networks 有权
    在多用户蜂窝网络分数复用负责与干扰协调意识的动态小区选择

    公开(公告)号：EP2525523A1

    公开(公告)日：2012-11-21

    申请号：EP11163941.5

    申请日：2011-04-27

    申请人： NTT DoCoMo, Inc.

    发明人： Dotzler, Andreas ,  Utschick, Wolfgang ,  Dietl, Guido, Dr.

    IPC分类号： H04L5/00

    CPC分类号： H04W16/10 ,  H04L5/0037 ,  H04L5/0064

    摘要： A method for determining for a plurality of users of a wireless cellular network transmitters of the wireless cellular network used for determining candidate rate configurations for serving the users is described, wherein the transmitters of the wireless cellular network operate in accordance with the fractional reuse scheme allocating distinct resource blocks to respective transmitter partitions, each partition including transmitters having assigned the same resource block, and wherein for each user, an active transmitter set is determined by selecting from each transmitter partition a transmitter as an active transmitter in accordance with a predefined criterion.

    摘要翻译： 描述了一种用于确定开采用于确定性采矿候选速率配置用于服务的用户的无线蜂窝网络的无线蜂窝网络发射机的用户的一个多元化的方法，worin无线蜂窝网络的发送器在雅舞的部分重用方案分配操作 不同的资源块以respectivement发射机分区，每个分区包含发射机具有分配的相同的资源块，并worin用于在活动发射器组中的每个用户被确定通过从每个发射机分区选择一个发送器，以活性发射机在雅舞蹈与预定义的标准开采。

    Apparatus and method for calculating receive parameters for an MIMO system
    10.
    发明公开
    Apparatus and method for calculating receive parameters for an MIMO system 有权
    装置和方法，用于计算所述接收的参数的MIMO系统

    公开(公告)号：EP2410705A1

    公开(公告)日：2012-01-25

    申请号：EP10170166.2

    申请日：2010-07-20

    申请人： NTT DoCoMo, Inc.

    发明人： Dotzler, Andreas ,  Guthy, Christian ,  Utschick, Wolfgang ,  Dietl, Guido

    IPC分类号： H04L25/02

    CPC分类号： H04L25/0204 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0073 ,  H04L25/0242 ,  H04L25/03343 ,  H04L2025/03802

    摘要： An apparatus for calculating receive parameters for an MIMO system comprising a plurality of individual transmission sections, a transmission section having a transmit circuit being adjustable by a transmit parameter, and a plurality of individual users, a user having a receive circuit being adjustable by a receive parameter, comprises a calculator (10) for calculating a receive parameter (11) for a first selected data stream for a first user of the plurality of users using a channel information (12) for a transmission channel between the user and a first individual transmit section, to which the user is associated, and for calculating a receive parameter (13) for a second selected data stream for a second user of the plurality of users associated with a second different individual transmission section using a channel information (14) between the first user and the second transmission section, to which the second user is associated with, or using (15) the calculated receive parameter for the first user, so that an interference caused by transmissions from the transmission sections to the first user and the second user are reduced or eliminated. The allocation of users and the calculation of receive parameters for the users can be performed successively for a group of transmission sections, where the final transmit parameters are continuously updated and are finally determined when the allocation of the users in the group of sectors is completed.

    摘要翻译： 用于计算接收参数在MIMO系统，包括各个发送段的多元化的装置，具有发射电路由一个发射参数是可调节的发送部，以及个人用户的复数，用户具有通过接收接收电路是可调节的 参数，包括用于使用信道的信息（12），用于将用户和第一个体发射之间的传输信道来计算用于第一选择的数据流的接收参数（11），用于用户的所述多个第一用户的计算器（10） 部，该用户相关联，以及用于计算一个第二选择的数据流接收参数（13），用于使用所述之间的信道信息（14）与不同的第二单独发射部分相关联的用户的所述多个第二用户 第一用户和所述第二发送部，向所述第二用户相关联，或使用（15）所计算出的接收参数f 或所述第一用户，所以没有通过从发送部向所述第一用户和第二用户的传输引起的干扰被减小或消除。 用户的分配和接收参数的用户的计算可以连续地针对一组发送部，其中，所述最终发射参数被连续进行更新，并最后确定开采当完成扇区组中的用户的分配来执行。