公开(公告)号：US20140036790A1

公开(公告)日：2014-02-06

申请号：US13567397

申请日：2012-08-06

申请人： Paulo G. NORMANDO ,  Carlos I.R. Bandeira ,  Darlan Cavalcante Moreira ,  Walter C. Freitas, JR. ,  Yuri C.B. Silva

发明人： Paulo G. NORMANDO ,  Carlos I.R. Bandeira ,  Darlan Cavalcante Moreira ,  Walter C. Freitas, JR. ,  Yuri C.B. Silva

IPC分类号： H04B15/00

CPC分类号： H04J11/0033 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0456 ,  H04B15/00

摘要： In MU-MIMO scenarios, uncoordinated or external interference may be very significant. Such external interference can degrade the system performance as much as the internal interference. To address these problems, a desired signal subspace can be changed to avoid the external interference as much as possible. This technique can be applied in conjunction with systems that already cancel internal interference, such as Interference Alignment and Joint Processing. An original signal space may be broken down to desired and interference subspaces that are orthogonal to each other. The receiver can notify the transmitter of the boundary, and transmitter in turn can project the transmitted signal to fall into the desired subspace. The receiver can project the received signal into the desired subspace, which cancels everything not contained in the desired subspace.

摘要翻译： 在MU-MIMO方案中，不协调或外部干扰可能非常显着。 这种外部干扰可能使系统性能与内部干扰一样多。 为了解决这些问题，可以改变期望的信号子空间，以尽可能地避免外部干扰。 该技术可以与已经消除内部干扰的系统结合使用，例如干扰对准和联合处理。 原始信号空间可以被分解为彼此正交的期望的和干扰的子空间。 接收机可以通知发射机的边界，而发射机又可以将传输的信号投影到所需的子空间中。 接收机可以将接收到的信号投影到所需的子空间中，从而取消所需的子空间中不包含的一切。