发明名称 |
Receiver and Method for the Reception of a Node by a Receiver in a Wireless Network |
摘要 |
In one embodiment, a method includes receiving a radio frequency (RF) signal; synchronizing the received RF signal with a preamble to determine a time base; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal; comparing the quality value of the received RF signal with a predetermined quality threshold value; and, if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base. |
申请公布号 |
US2014315508(A1) |
申请公布日期 |
2014.10.23 |
申请号 |
US201414257473 |
申请日期 |
2014.04.21 |
申请人 |
Ferchland Tilo;Jaehne Rolf;Poegel Frank;Sachse Eric |
发明人 |
Ferchland Tilo;Jaehne Rolf;Poegel Frank;Sachse Eric |
分类号 |
H04B17/00;H04W4/00;H04W24/00 |
主分类号 |
H04B17/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method comprising, at a receiver:
receiving a radio frequency (RF) signal via an antenna; synchronizing the received RF signal with a preamble to determine a time base providing a temporal reference for detecting data in the received RF signal; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal by averaging RSSI values of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal by correlating binary chips in the received RF signal with binary chips of a pseudonoise (PN) sequence; comparing the quality value of the received RF signal with a predetermined quality threshold value; and if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base. |
地址 |
Dresden DE |