发明授权
- 专利标题： Coordination in wireless networks having devices with different physical layer transmission schemes
- 专利标题（中）： 具有不同物理层传输方案的设备的无线网络中的协调
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申请号： US12526363申请日： 2008-02-15
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公开(公告)号： US08233505B2公开(公告)日： 2012-07-31
- 发明人: Dagnachew Birru , Chun-Ting Chou , Alireza Seyedi
- 申请人： Dagnachew Birru , Chun-Ting Chou , Alireza Seyedi
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人地址： NL Eindhoven
- 代理商 Larry Liberchuk
- 国际申请： PCT/IB2008/050562 WO 20080215
- 国际公布： WO2008/099367 WO 20080821
- 主分类号： H04J1/16
- IPC分类号： H04J1/16 ; H04L12/56
摘要：
A wireless network (300) operates with at least two different types of wireless devices, including Type-A wireless devices (320) that communicate using a first transmission scheme and Type-B wireless devices (310) that communicate using a second transmission scheme. Type-A wireless devices (320) can transmit Type-A beacons (325) using the first transmission scheme. Type-B wireless devices (310) can transmit and receive Type-B beacons (315) using the second transmission scheme. Type-B wireless devices (310) can also transmit Type-A beacons (325) using the first transmission scheme, but cannot receive the Type-A beacons (325). Before establishing communications in a new channel, a Type-B wireless device (310) performs power sensing to detect the presence of any non-Type-B wireless devices (200), and if such wireless devices (200) are detected, it switches to another channel. Otherwise, it transmits a Type-A beacon (325) and a Type-B beacon (315) to establish communications in the channel.
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