发明名称 |
Method and system of reducing collisions in an asynchronous communication system |
摘要 |
A method (60 or 70) and system of reducing collisions in an asynchronous communication system can include the steps at a transmitter (200) of generating (61) a set of known preamble waveforms and transmitting (64) at least one distinguishable preamble waveform based on an association with a call type and a receiver identifier. The method (70) can also include the steps at a receiver (300) of receiving (71) at least one preamble waveform among a set of different preamble waveforms which toggle between two symbol frequencies, the different preamble waveforms being distinguishable by at least having one among a different symbol frequency spacing and a different symbol toggling duty cycle. The method further includes the step of selecting (73) to decode a preamble waveform based on at least one among the different symbol frequency spacing and the different symbol toggling duty cycle.
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申请公布号 |
US7460624(B2) |
申请公布日期 |
2008.12.02 |
申请号 |
US20040803325 |
申请日期 |
2004.03.18 |
申请人 |
MOTOROLA, INC. |
发明人 |
CARSELLO STEPHEN R.;RAINBOLT BRADLEY J. |
分类号 |
H03D1/04;H03C1/62;H03D1/00;H04B1/10;H04L1/00;H04L12/56;H04L25/08;H04L27/06;H04W52/02 |
主分类号 |
H03D1/04 |
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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