发明名称 |
System and method for determining path loss with hysteresis in a radio communication system |
摘要 |
<p>A test method is for determining RF path loss between an RF source and an RF receiver. The RF source may transmit RF power values at a relatively fine granularity, and the RF receiver may generate RSSI values at a relatively coarse granularity and have an unknown hysteresis about each transition between adjacent RSSI values. Hysteresis edges may be determined about a given RSSI value transition at the RF receiver by sweeping RF power values transmitted from the RF source in increasing and decreasing directions. A relationship between the relatively fine granularity RF power values and the relative coarse granularity RSSI values may be determined using the hysteresis transition edges. The RF path loss for a given channel may be determined based upon a given RSSI at a given RF power value and the relationship between the relatively fine granularity RF power values and the relative coarse granularity RSSI values.</p> |
申请公布号 |
EP1830496(B1) |
申请公布日期 |
2008.11.12 |
申请号 |
EP20060251112 |
申请日期 |
2006.03.01 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
QI, YIHONG;JARMUSZEWSKI, PERRY;CERTAIN, MICHAEL |
分类号 |
H04B17/00 |
主分类号 |
H04B17/00 |
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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