发明授权
- 专利标题： Communication device and communication method, computer program, and communication system
- 专利标题（中）： 通信设备和通信方法，计算机程序和通信系统
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申请号： US13258040申请日： 2010-02-09
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公开(公告)号： US09525473B2公开(公告)日： 2016-12-20
- 发明人: Kazuyuki Sakoda , Yuichi Morioka , Ryo Sawai , Hiroaki Takano , Ryota Kimura , Takushi Kunihiro
- 申请人： Kazuyuki Sakoda , Yuichi Morioka , Ryo Sawai , Hiroaki Takano , Ryota Kimura , Takushi Kunihiro
- 申请人地址： JP Tokyo
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Chip Law Group
- 优先权： JP2009-099324 20090415
- 国际申请： PCT/JP2010/051896 WO 20100209
- 国际公布： WO2010/119718 WO 20101021
- 主分类号： H04B7/00
- IPC分类号： H04B7/00 ; H04B7/06 ; H01Q3/26 ; H01Q9/16 ; H01Q13/10 ; H01Q21/06 ; H04B7/04 ; H04W74/08 ; H04W72/04
摘要：
Suitable beam pattern control is performed while performing access control based on physical carrier sense.A communication device transmits frames having a long preamble under a state where signals will not reach unless a beam pattern is formed, thereby enabling access control based on physical carrier sense, and under a state where signals will sufficiently reach without a beam pattern being formed transmits frames having a shorter preamble, thereby suppressing transmission overhead. Also, a beam pattern and preamble type are decided based on transmission/reception history of access control following CSMA/CA procedures.
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