发明名称 |
Method for maintaining the continuing existence of NPD in IEEE 802.22.1 operation |
摘要 |
<p>Methods for maintaining continuing existence of a next-in-line protecting device in a beacon network including a primary protecting device (PPD), the next-in-line protecting device (NPD) and a plurality of secondary protecting devices (SPDs). In one method, a subset of the plurality of secondary protecting devices periodically transmit beacon messages to the primary protecting device. When the next-in-line protecting device disappears, the primary protecting device selects a secondary protecting device from among the secondary protecting devices that have transmitted the beacon messages within a certain period to be a new next-in-line protecting device. In another method, the plurality of secondary protecting devices continuously monitor an existence of the next-in-line protecting device. When the next-in-line protecting device disappears for a certain period of time, a subset of the plurality of secondary protecting devices may contend to be a new next-in-line protecting device. In still another method, the primary protecting device transmits a beacon message to the plurality of secondary protecting devices to indicate whether a next-in-line protecting device is required. When a next-in-line protecting device is required, a subset of the secondary protecting devices contend to be a new next-in-line protecting device.</p> |
申请公布号 |
EP2012440(B1) |
申请公布日期 |
2013.08.21 |
申请号 |
EP20080159774 |
申请日期 |
2008.07.04 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JI, BAOWEI;MAZZARESE, DAVID;CHENG, JINXIA;SHAN, CHENG |
分类号 |
H04B1/74 |
主分类号 |
H04B1/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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