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公开(公告)号:US08626140B2
公开(公告)日:2014-01-07
申请号:US12501205
申请日:2009-07-10
IPC分类号: H04M3/00
CPC分类号: H04W84/08 , H04Q2213/13098 , H04W4/02
摘要: Method for adapting radiofrequency signal spectrum, particularly in TETRA communications systems. The invention proposes using over-the-air signaling for communications systems according to the TETRA standard, to configure the characteristics of the radiofrequency signal, with the advantage that there is no loss of performance in data transmission speed and no need to change the type of modulation.
摘要翻译: 适应射频信号频谱的方法,特别是在TETRA通信系统中。 本发明提出使用根据TETRA标准的通信系统的空中信令来配置射频信号的特性,其优点是数据传输速度没有性能损失,并且不需要改变类型 调制。