6864 Mcps.
Convolutional coding is used on the fundamental and supplemental channels. Their coding rates
depend on the radio configuration used. The supplemental channel also supports turbo coding, provided
the amount of bits per frame exceeds a certain threshold value. All convolutional codes have a constraint
length of 9. The octal representations of the generator functions are given below:
Code rate G0 G1 G2 G3
R 1/2 753 561
R 1/3 557 663 711
R 1/4 765 671 513 473
WIRELESS TOPICS 13
TABLE 1.4 Reverse Link Radio Configuration Characteristics
Radio Number Data rates FEC Modulation
configuration of carriers supported technique scheme
1 1 1.2K, 2.4K, 4.8K, 9.6K R 1/3 64-ary
Convolutional orthogonal
2 1 1.8K, 3.6K, 7.2K, 14.4K R 1/2 64-ary
Convolutional orthogonal
3 1 1.2K, 1.35K, 1.5K, 2.4K, R 1/4 and R 1/2 Coherent BPSK
2.7K, 4.8K, 9.6K, 19.2K, Convolutional
38.4K, 76.8K, 153.6K, 307.2K
4 1 1.8K, 3.6K, 7.2K, 14.4K, R 1/4 Coherent BPSK
28.8K, 57.6K, 115.2K, 230.4K Convolutional
5 3 1.2K, 1.35K, 1.5K, 2.4K, 2.7K, R 1/3 Coherent BPSK
4.8K, 9.6K, 19.2K, 38.4K, 76.8K, Convolutional
153.6K, 307.2K, 614.4K
6 3 1.8K, 3.6K, 7.2K, 14.4K, 28.8K, R 1/4 and R 1/2 Coherent BPSK
57.6K, 115.
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