| 摘要 |
There is disclosed a packet radio network, in which packets of data are sent over a radio link in fixed length frames, voice data being sent over the radio link in fixed length data blocks each having a length equal to the frame length. The network includes: a channel encoder for channel encoding voice into voice blocks equal in length to the frame length. A header is generated for each block. The header has a length of n bits. Signal processing means punctures a group of bits in the voice blocks to remove n bits to produce a payload. The data blocks consisting of a header and a payload are transmitted over the radio link, allowing the use of a standard channel coder. <IMAGE> |
