公开(公告)号：US20190190756A1

公开(公告)日：2019-06-20

申请号：US16285518

申请日：2019-02-26

Applicant: Nokia Solutions and Networks Oy

Inventor： Olli Juhani PIIRAINEN ,  Shirish NAGARAJ

IPC: H04L27/26

Abstract: A method and apparatus are disclosed for determining a signal subspace in a communications system. A remote apparatus obtains signal streams from antenna elements or signal streams from antenna beams. Based on the obtained signal streams, the apparatus selects a signal subspace for a user, the signal subspace having a dimension M. Based on the selected signal subspace, the apparatus transmits, via an interface to a central apparatus, M streams of post-fast-Fourier-transform data, the interface being capable of transmitting a different subspace for different frequency bins.

公开(公告)号：US20170033961A1

公开(公告)日：2017-02-02

申请号：US15303656

申请日：2014-04-14

Applicant: Nokia Solutions and Networks Oy

Inventor： Olli Piirainen ,  Shirish NAGARAJ

IPC: H04L27/26

CPC classification number: H04L27/265 ,  H04L27/2647 ,  H04L2025/03713 ,  H04W72/0453 ,  H04W88/085

Abstract: A method and apparatus is disclosed for determining a signal subspace in a communications system. A remote apparatus obtains signal streams from antenna elements or signal streams from antenna beams. Based on the obtained signal streams, the apparatus selects a signal subspace for a user, the signal sub-space having a dimension M. Based on the selected signal subspace, the apparatus transmits, via an interface to a central apparatus, M streams of post-fast-Fourier-transform data, the interface being capable of transmitting a different sub-space for different frequency bins.

Abstract translation: 公开了一种用于确定通信系统中的信号子空间的方法和装置。 远程设备从天线元件或天线波束的信号流中获得信号流。 基于获得的信号流，设备为用户选择信号子空间，信号子空间具有维度M.基于所选择的信号子空间，设备经由接口向中央设备发送M个信息流 快速傅里叶变换数据，该接口能够发送用于不同频率仓的不同子空间。