cdmaOne(IS-95) Reverse Traffic Channel (Rate Set 2)

Information bits

(267 ,125,55,21

bits/frame)

frame=20 msec

Add Frame Quality

Indicator (12,10,8,

6 bits/frame)

13.35 kbps

6.25 kbps

2.75 kbps

1.05 kbps

Add Encoder Tail

8 bits/frame

14.4 kbps

7.2 kbps

3.6 kbps

1.82 kbps

Rate Set 2

Add one

erasure

indicator bit

Convolution Encoder

r=1/2, K=9

Symbol Repetition

(1,2,4,8)

Block

Interleaver

Code symbol

28.8 kbps

Walsh chip

307.2 kcps

Data Burst

Randomizer.

„v

Long code

generator

Long Code Mask

1.2288 Mcps

B.P.F.

„v

I-channel

Sequence

B.P.F.

„v

Q-channel

Sequence

„u

Cos Wct

„u

Sins Wct

„v

s(t)

64-ary

Orthogonal Mod.

Frame data rate

D

1/2 PN chip

I(t)

Q(t)

OQPSK

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