公开(公告)号：WO2015024056A1

公开(公告)日：2015-02-26

申请号：PCT/AU2014/000826

申请日：2014-08-21

Applicant: UNIVERSITY OF SOUTH AUSTRALIA

Inventor： GRANT, Alexander James ,  LECHNER, Gottfried ,  POLLOK, Andre ,  McKILLIAM, Robert George ,  LAND, Ingmar Rudiger ,  HALEY, David Victor Lawrie ,  COWLEY, William George ,  DAVIS, Linda Mary ,  BARBULESCU, Sorin Adrian ,  BUETEFUER, John Lawrence ,  LAVENANT, Marc Pierre Denis

IPC: H04B1/10 ,  H04B1/7097

CPC classification number: H04B7/18539 ,  H04B1/7107 ,  H04W72/0446 ,  H04W72/082 ,  H04W88/02

Abstract: A multiuser communication system comprises multiple transmitters and a multiuser receiver that detects multiple transmissions via iterative soft interference cancellation. An initial acquisition module and single user decoder module are also described. The multiuser receiver acquires and subtracts known users in the residual signal before acquiring new users in the residual signal, which is performed iteratively until no new users are detected or a stopping criterion is met. To aid receiver acquisition, the transmitters insert discrete tones into the transmitted signals. These allow the multiuser receiver to obtain initial estimates of the frequency, time, gain, and/or phase offset for each user. To improve the quality of cancellation the receiver refines estimates of gain, time, frequency and phase offsets for each user after each iteration, and calculates time varying SINR estimates for each user. The multiuser receiver may be satellite based, may be a distributed receiver, or process users in parallel..

Abstract translation: 多用户通信系统包括多个发射机和通过迭代软干扰消除来检测多个传输的多用户接收机。 还描述了初始采集模块和单用户解码器模块。 多用户接收机在获取剩余信号中的新用户之前，对残留信号中的已知用户进行迭代，获取并减去已知用户，直到不检测到新的用户或满足停止标准为止。 为了帮助接收机采集，发射机将离散音调插入发射信号。 这些允许多用户接收机获得每个用户的频率，时间，增益和/或相位偏移的初始估计。 为了提高取消的质量，接收机在每次迭代之后对每个用户的增益，时间，频率和相位偏移的估计进行精细化，并计算每个用户的时变SINR估计。 多用户接收机可以是基于卫星的，可以是分布式接收机，或并行处理用户。

公开(公告)号：WO2014043760A1

公开(公告)日：2014-03-27

申请号：PCT/AU2013/001078

申请日：2013-09-20

Applicant: UNIVERSITY OF SOUTH AUSTRALIA

Inventor： HALEY, David Victor Lawrie ,  BUETEFUER, John Lawrence ,  GRANT, Alexander James ,  COWLEY, William George ,  LECHNER, Gottfried ,  LAND, Ingmar Rudiger ,  MCKILLIAM, Robert George ,  POLLOK, Andre ,  DAVIS, Linda Mary ,  LUPPINO, Ricky Rocco ,  BARBULESCU, Sorin Adrian

IPC: H04W40/04 ,  H04B7/204

CPC classification number: H04B7/18513 ,  H04B7/185 ,  H04B7/212 ,  H04W40/20 ,  Y02D70/00 ,  Y02D70/164 ,  Y02D70/38 ,  Y02D70/446

Abstract: A communication system is disclosed. In an embodiment, the communication system includes a user node for receiving data from a remote application program, the data including message data for communication to a central application program operatively associated with the remote application program; plurality of geographically distributed gateway nodes; one or more access nodes for receiving the message data from the user node via a first communications interface, and communicating the message data via a second communications interface to one or more of the plurality of geographically distributed gateway nodes; and a hub for communicating with the one or more of the plurality of geographically distributed gateway nodes to receive the message data for communication to the central application.

Abstract translation: 公开了通信系统。 在一个实施例中，通信系统包括用于从远程应用程序接收数据的用户节点，该数据包括用于与可操作地与远程应用程序相关联的中央应用程序通信的消息数据; 多个地理分布式网关节点; 一个或多个接入节点，用于经由第一通信接口从所述用户节点接收所述消息数据，以及经由第二通信接口将所述消息数据传送到所述多个地理分布的网关节点中的一个或多个; 以及用于与所述多个地理分布的网关节点中的一个或多个通信的中枢，以接收用于与中央应用通信的消息数据。