| 摘要 |
A method and device(s) for increasing the Cellular Digital Packet Data (CDPD) user data rate between a mobile terminal and a basestation in a digital cellular mobile communications system. The device use the same modulation scheme that is used for digital speech to encapsulate CDPD block data (10a-10c), specifically, the TIA/EIA-136 standard. An encoding step is performed on the sending end that includes constructing a CDPD block (Fig.1) comprised of CDPD data, assembling an TIA/EIA-136 frame (12a-12f) leaving the data fields of the frame empty, and placing CDPD block data in the data fields. The assembled TIA/EIA-136 frame is then sent using existing transmission code. To unpack the CDPD block data, a decoding step is performed on the receiving end that includes receiving the TIA/EIA-136 frame comprised of CDPD data in the data fields of the TIA/EIA-136 frame, and re-constructing the CDPD block from the data fields.
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