Rate adaptation for use in adaptive
US8265220 Патенты
The present invention includes a time-division-multiple-ac cess (TDMA) communication system having a base station and at least one mobile station, each transmitting and receiv ing an analog radio-frequency signal carrying digitally coded speech. The speech is encoded using a Vocoder which samples a voice signal at variable encoding rates. During periods when the radio-frequency channel is experiencing high levels of channel interference, the encoded voice chan nel having a lower encoding rate is chosen. This low-rate encoded voice is combined with the high degree of channel coding necessary to
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