公开(公告)号：US20160036510A1

公开(公告)日：2016-02-04

申请号：US14877053

申请日：2015-10-07

Applicant: NEC CORPORATION

Inventor： Kenichi HOSOYA ,  Kenichi MARUHASHI ,  Naoyuki ORIHASHI

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/061 ,  H04B7/0695 ,  H04B7/086 ,  H04B7/088 ,  H04L5/0048

Abstract: When communication is to be performed between communication devices having a directivity control function, a plurality of antenna-setting pairs available for the communication are stored by an initial training, and the communication is started by using one of the plurality of antenna-setting pairs. When the communication quality is deteriorated, firstly, a training signal is transmitted while successively setting each one of the plurality of antenna-setting candidates determined in the initial training in a transmitting antenna of one of the communication devices (400), and the training signal is received in a state where a quasi-omni pattern is generated in a receiving antenna of the other communication device (500). In this way, in radio communication performing beam forming, it is possible to ensure the time synchronization between the communication devices when communication is disconnected or communication quality is deteriorated due to shielding or the like.

Abstract translation: 当在具有方向性控制功能的通信设备之间进行通信时，通过初始训练来存储可用于通信的多个天线设置对，并且通过使用多个天线设置对之一来开始通信。 当通信质量恶化时，首先，在通信装置（400）中的一个的发送天线中连续设置在初始训练中确定的多个天线设定候补中的每一个天线设定候补的训练信号，并且训练信号 在其他通信设备（500）的接收天线中产生准全向模式的状态下被接收。 以这种方式，在执行波束形成的无线电通信中，当通信断开或通信质量由于屏蔽等而劣化时，可以确保通信装置之间的时间同步。