公开(公告)号：EP3269197A1

公开(公告)日：2018-01-17

申请号：EP16762293.5

申请日：2016-03-07

申请人： NEC Laboratories America, Inc.

发明人： CHAI, Eugene ,  SUNDARESAN, Karthikeyan ,  KHOJASTEPOUR, Mohammad ,  RANGARAJAN, Sampath ,  GARIKIPATI, Krishna

IPC分类号： H04W74/08 ,  H04W72/12 ,  H04W88/10

摘要： Methods and systems of asynchronous access and synchronous transmission include transmitting an initial reservation packet using a first protocol to prevent other devices that use the first protocol from transmitting during a reserved duration. A carrier using a second protocol is activated. Information is transmitted using a second protocol during the reserved duration. During a last subframe of the reserved duration, an additional reservation packet is transmitted using the first protocol to extend the reserved duration. The transmission of the additional reservation packet takes place while the carrier using the second protocol is still active.

公开(公告)号：EP3175562A1

公开(公告)日：2017-06-07

申请号：EP15827398.7

申请日：2015-07-29

申请人： NEC Laboratories America, Inc.

发明人： KHOJASTEPOUR, Mohammad ,  SUNDARESAN, Karthikeyan ,  RANGARAJAN, Sampath

IPC分类号： H04B17/345 ,  H04B17/11 ,  H04B17/21 ,  H04B7/02 ,  H04B7/04

CPC分类号： H04J11/005 ,  H04B7/024

摘要： A method, system, and computer program product for minimizing intra-cell and inter-cell interference in a multi-cell full duplex communication system in a wireless network. The method includes selecting, by a client selector, a plurality of clients, wherein the plurality of clients includes a plurality of uplink clients configured to transmit signals and a plurality of downlink clients configured to receive signals over a plurality of data streams in each cell of the multi-cell full duplex communication system, and performing, by a spatial interference aligner, spatial interference alignment on interfering data streams to align the interfering data streams of uplink clients towards downlink clients in its own cell and downlink clients in a neighboring cell.

摘要翻译： 一种用于最小化无线网络中的多小区全双工通信系统中的小区内和小区间干扰的方法，系统和计算机程序产品。 该方法包括由clint选择器选择多个客户端，其中多个客户端包括被配置为发送信号的多个上行链路客户端以及被配置为通过多个数据流在多个数据流中接收信号的多个下行链路客户端， 多小区全双工通信系统，并且通过空间干扰对准器对干扰数据流执行空间干扰对准，以将上行链路客户端的干扰数据流对准其自己的小区中的下行链路客户端和相邻小区中的下行链路客户端。

公开(公告)号：EP3158701A1

公开(公告)日：2017-04-26

申请号：EP15808947.4

申请日：2015-06-18

申请人： NEC Laboratories America, Inc.

发明人： KHOJASTEPOUR, Mohammad ,  SUNDARESAN, Karthikeyan

IPC分类号： H04L25/08 ,  H04L25/02

CPC分类号： H04B7/0634 ,  H04B7/0456 ,  H04B2215/00 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073 ,  H04L5/143 ,  H04L25/03343 ,  H04L25/03898

摘要： Systems and methods for full-duplex communication in a communications network, including generating a combined channel matrix including two or more channel matrices and determining a null space and a basis for the combined channel matrix. Common, individual, and disjoint vector spaces are determined, and common vector space is determined for each of one or more receiving nodes and each or one or more transmitting nodes, disjoint vector spaces for each of the one or more nodes are determined based on the common vector space for each of the one or more nodes, and individual vector spaces are determined based on the common and the disjoint vector spaces. Signals are mapped at each of the nodes to determine corresponding vector spaces; and interference alignment is performed in common vector spaces and zero forcing in disjoint vector spaces using a hardware processor.

摘要翻译： 包括生成包括两个或更多个信道矩阵并且确定零空间的组合信道矩阵以及组合信道矩阵的基础的用于通信网络中的全双工通信的系统和方法。 确定公共，个体和不相交向量空间，并且为一个或多个接收节点中的每一个确定公共向量空间，并且基于所述一个或多个接收节点确定每个或一个或多个发送节点，所述一个或多个节点中的每一个的不相交向量空间 基于公共和不相交的向量空间来确定一个或多个节点中的每一个的公共向量空间以及各个向量空间。 信号被映射到每个节点以确定相应的向量空间; 并且使用硬件处理器在公共向量空间中执行干涉对准并且在不相交向量空间中执行零强制。