公开(公告)号：EP1737176A1

公开(公告)日：2006-12-27

申请号：EP05013276.0

申请日：2005-06-20

申请人： NTT DoCoMo, Inc.

发明人： Tejera, Pedro ,  Utschick, Wolfgang, Prof. Dr. ,  Nossek, Josef A., Prof. Dr. ,  Bauch, Gerhard, Dr.

IPC分类号： H04L27/26

CPC分类号： H04B7/0452 ,  H04L27/2602 ,  H04L27/2608

摘要： An apparatus for signaling an allocation of a communication link between a transmitter (100) and a first receiver (102) to a first subchannel (H 1 ) of a communication channel and for signaling an allocation of a second communication link between the transmitter (100) and a second receiver (104) to a second subchannel (H 2 ) of the communication channel, the first and second subchannels (H 1 , H 2 ) being different from each other, comprises a subchannel allocation signaler (106) being configured to transmit a first user identifier (ui1) over the first subchannel (H 1 ) and to transmit a second user identifier (ui2) over the second subchannel (H 2 ), wherein the first and second user identifiers (ui1, ui2) are different from each other and wherein the first user identifier (ui1) is assigned to the first receiver (102) and the second user identifier (ui2) is assigned to the second receiver (104).

摘要翻译： 一种用于将发射机（100）和第一接收机（102）之间的通信链路的分配发送到通信信道的第一子信道（H 1）并用于发信号通知发送机（100）之间的第二通信链路 ）和通信信道的第二子信道（H 2）的第二接收机（104），所述第一和第二子信道（H 1，H 2）彼此不同，包括子信道分配信令器（106），被配置为 通过所述第一子信道（H 1）发送第一用户标识符（ui1），并在所述第二子信道（H 2）上发送第二用户标识符（ui2），其中，所述第一和第二用户标识符（ui1，ui2）不同于 彼此并且其中第一用户标识符（ui1）被分配给第一接收机（102），并且第二用户标识符（ui2）被分配给第二接收机（104）。

公开(公告)号：EP1863248B1

公开(公告)日：2009-03-04

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

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。