公开(公告)号：EP2896263A1

公开(公告)日：2015-07-22

申请号：EP12780887.1

申请日：2012-09-17

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： SELÈN, Yngve ,  MALEKAFZALIARDAKANI, Reihaneh ,  RUNE, Johan ,  SACHS, Joachim ,  WILHELMSSON, Leif

IPC分类号： H04W76/02 ,  H04W84/18

CPC分类号： H04W8/005 ,  H04W72/0453 ,  H04W72/082 ,  H04W76/14 ,  H04W92/18

摘要： A method in a first wireless device for handling Device to Device, D2D, communication between the first wireless device and a second wireless device is provided. The first wireless device sends a beacon signal to be received by the second wireless device. The beacon signal announces that the first wireless device is available for D2D communication. The beacon signal is sent on a first channel where the first wireless device is interfered. The beacon signal indicates that no response to the beacon signal shall be sent on the first channel.

摘要翻译： 提供了用于处理设备到设备的第一无线设备中的方法，D2D，第一无线设备和第二无线设备之间的通信。 第一无线设备发送要由第二无线设备接收的信标信号。 信标信号宣布第一无线设备可用于D2D通信。 信标信号在第一无线设备被干扰的第一信道上发送。 信标信号表示在第一信道上不发送对信标信号的响应。

公开(公告)号：EP2926592A1

公开(公告)日：2015-10-07

申请号：EP12799663.5

申请日：2012-11-28

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： SACHS, Joachim ,  GUNNARSSON, Fredrik ,  MALEKAFZALIARDAKANI, Reihaneh ,  SELÉN, Yngve ,  WILHELMSSON, Leif

IPC分类号： H04W36/22 ,  H04W36/32 ,  H04W8/18

CPC分类号： H04W36/32 ,  H04W4/02 ,  H04W8/186 ,  H04W36/14 ,  H04W36/22 ,  H04W72/0453 ,  H04W88/02

摘要： A method in a network node for allocating to user equipments a respective carrier is provided. The carrier is a frequency carrier for wireless communication. The network node is comprised in a cellular network. The network node identifies (202) a set of carriers. The carriers in the set of carriers each are associated with a respective geographic handover region for handover between cells. The geographic handover regions of the carriers differ from each other more than a threshold. When the network node has identified (203) a group of user group of user equipments with correlated mobility pattern, it allocates (204) to at least two of the user equipments within the group of user equipments a respective carrier. The allocation is performed such that the at least two user equipments in the group are spread among the carriers in the set of carriers.

公开(公告)号：EP2329606A1

公开(公告)日：2011-06-08

申请号：EP08779447.5

申请日：2008-07-14

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： KANGAS, Ari ,  MALEKAFZALIARDAKANI, Reihaneh

IPC分类号： H04B7/08 ,  H04L25/03

CPC分类号： H04L25/03006 ,  H04B7/0854 ,  H04L25/03343 ,  H04L2025/03426

摘要： Method and apparatus are provided for processing a received signal for making a symbol estimate of a symbol included in a signal transmitted in a Multiple-Input-Multiple-Output (MIMO) system. In an example mode, the method comprises (1 ) providing at least a subset of precoding matrices which are candidates for use in transmission of an interfering signal in a MIMO system; (2) using the received signal and plural candidates of the subset to determine corresponding plural covariance matrices, each of the plural covariance matrices being formed using a corresponding candidate precoding matrix; (3) determinig which of the candidates is a trace minimizing candidate which is associated with one of the plural covariance matrices that has a minimum trace value; (4) forming a weighting matrix using the trace minimizing candidate; and (5) using the weighting matrix to make the symbol estimation.

摘要翻译： 提供了用于处理接收到的信号以进行在多输入多输出（MIMO）系统中传输的信号中包括的符号的符号估计的方法和装置。 在一个示例模式中，该方法包括：（1）提供至少一个预编码矩阵的子集，其是在MIMO系统中用于传输干扰信号的候选者; （2）使用所接收的信号和所述子集的多个候选来确定对应的多个协方差矩阵，使用相应的候选预编码矩阵来形成所述多个协方差矩阵中的每一个; （3）确定哪个候选是与具有最小跟踪值的多个协方差矩阵之一相关联的跟踪最小化候选; （4）使用跟踪最小化候选来形成加权矩阵; 和（5）使用加权矩阵进行符号估计。