In addition, an application scenario of OFDM-based TDCS, signallingexchange in the cognitive radio context, is proposed in this paper.
此外，本文提出了基于OFDM的TDCS的一种应用场景-认知无线电中的信令交换。
2
A bearer channel connection protocol establishes and de-establishes bearer connections required on demand, identified by the signalling information, under the control of the Local Exchange.
承载通路连接协议在本地交换机的控制下根据需要来建立和清除承载连接，该连接由信令信息来标识。
3
They should not be relied upon to provide an error free method of relaying tone signalling to other decoders, such as a telephone exchange DTMF detector, for example.