THink of it like adding a radio channel to a station.

想一想加入一个无线信道的一站。

This paper introduces the researching methods about indoor radio channel.

对室内无线信道的研究方法进行了介绍。

So OFDM system has requirement to research and design radio channel equalizer.

因此，对OFDM系统的信道均衡设计提出了要求。

PHS uses TDMA/TDD for its radio channel access method, and 32 kbit/s ADPCM for its voice codec.

小灵通使用TDMA(分时多址)/(时分复用)作为其接入无线网络的方法，且声讯编码以自适应差分脉冲编码调制方式调制，速率为每秒32千比特。

The paper presents a new adaptive code rate system for radio channel, based on that result.

并在此基础上提出了一种新型的针对无线信道的码率自适应系统；