公开(公告)号：US09893787B2

公开(公告)日：2018-02-13

申请号：US15018722

申请日：2016-02-08

Applicant: Intel Corporation

Inventor： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

IPC: H04B7/06 ,  H04W16/28 ,  H04B7/04 ,  H04B7/0456

CPC classification number: H04B7/0617 ,  H04B7/0434 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0641 ,  H04W16/28

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

公开(公告)号：US09225405B2

公开(公告)日：2015-12-29

申请号：US14293958

申请日：2014-06-02

Applicant: Intel Corporation

Inventor： Qinghua Li ,  Shanshan Zheng ,  Hongming Zheng ,  Guangjie Li ,  Senjie Zhang ,  Alexei Davydov

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0007 ,  H04L5/0037

Abstract: Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.

Abstract translation: 描述了用于无线通信的预编码方案的技术。 方法和装置可以包括用于通信系统的第一装置，用于使用信道信息，一个或多个缩放因子和一个或多个整数来表示复矢量来确定用于闭环发射波束成形方案的波束形成结构。 波束形成结构可以包括码字，码本和码字索引。 描述和要求保护其他实施例。

公开(公告)号：US20160365910A1

公开(公告)日：2016-12-15

申请号：US15018722

申请日：2016-02-08

Applicant: Intel Corporation

Inventor： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

IPC: H04B7/06 ,  H04W16/28 ,  H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0434 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0641 ,  H04W16/28

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

Abstract translation: MIMO波束成形方法包括在基站处接收关于理想波束成形矩阵和平均波束成形方向之间的差异的信息，使用该信息在基站处构造波束成形矩阵，以及使用重构波束形成矩阵执行波束成形操作。 或者，该方法包括在用户台处计算平均波束成形方向，在用户台处计算与差分码本中的差分矩阵相对应的量化索引，以及在无线网络的无线信道上发送量化索引。 可以通过识别码本中心和变换存储在无线网络的组件的存储器中的预定码本来构建差分码本。

公开(公告)号：US09258047B2

公开(公告)日：2016-02-09

申请号：US14086025

申请日：2013-11-21

Applicant: Intel Corporation

Inventor： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/04 ,  H04W16/28

CPC classification number: H04B7/0617 ,  H04B7/0434 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0641 ,  H04W16/28

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.