Invention Grant
- Patent Title: Coordination in wireless networks having devices with different physical layer transmission schemes
- Patent Title (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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Application No.: US12526363Application Date: 2008-02-15
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Publication No.: US08233505B2Publication Date: 2012-07-31
- Inventor: Dagnachew Birru , Chun-Ting Chou , Alireza Seyedi
- Applicant: Dagnachew Birru , Chun-Ting Chou , Alireza Seyedi
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Agent Larry Liberchuk
- International Application: PCT/IB2008/050562 WO 20080215
- International Announcement: WO2008/099367 WO 20080821
- Main IPC: H04J1/16
- IPC: H04J1/16 ; H04L12/56
Abstract:
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.
Public/Granted literature
- US20100189053A1 COORDINATION IN WIRELESS NETWORKS HAVING DEVICES WITH DIFFERENT PHYSICAL LAYER TRANSMISSION SCHEMES Public/Granted day:2010-07-29
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