公开(公告)号：US09369192B1

公开(公告)日：2016-06-14

申请号：US14524272

申请日：2014-10-27

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Ying-Cheng Lee ,  Timothy J. Donovan ,  Dharmesh C. Bhagatwala ,  Ken Kinwah Ho ,  Hongyuan Zhang ,  Rohit U. Nabar ,  Tsunglun Yu

IPC: H04W84/04 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/046 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0689 ,  H04B7/0871

Abstract: Systems, methods, and other embodiments associated with a hybrid beamforming architecture are described. According to one embodiment, a first wireless device includes a transmitter and a baseband beamforming processing unit. The baseband beamforming processing unit includes a steering matrix calculation unit and a steering matrix cache. The steering matrix calculation unit is configured to derive a steering matrix from channel related information in a first packet received from a second wireless device. The steering matrix includes weights. The steering matrix cache is configured to (i) store the steering matrix derived from the channel related information, and (ii) provide the weights from the steering matrix to the transmitter. The transmitter is configured to, based on the weights from the steering matrix, perform transmit beamforming on a second packet being transmitted to the second wireless device from the first wireless device.

Abstract translation: 描述了与混合波束形成架构相关联的系统，方法和其他实施例。 根据一个实施例，第一无线设备包括发射机和基带波束成形处理单元。 基带波束形成处理单元包括导向矩阵计算单元和导向矩阵高速缓存。 导引矩阵计算单元被配置为从从第二无线设备接收的第一分组中的信道相关信息中导出导引矩阵。 导向矩阵包括重量。 导引矩阵高速缓存被配置为（i）存储从信道相关信息导出的导引矩阵，以及（ii）从导引矩阵向发射机提供权重。 发射机被配置为基于来自导引矩阵的权重，在从第一无线设备发送到第二无线设备的第二分组上执行发射波束成形。