MSK and its generation (i posted this question yesterday night.still its not published..in groups..)

Hi dsp/wireless gurus,
please answer my previous questions, i am really stuck at those
points..will be thankfull to you dsp gurus for doing helping me out.
meanwhile i got one more fresh doubt after reading pasupathy paper of
[ MINIMUM SHIFT KEYING:A SPECTRALL\r EFFICIENT MODULATION ] by
subbarayan pasupathy 1979.

in that paper he explains about few diagrams and it means the
following

a +ve half sinusoid represents 1 and -ve half sinusoid respresents -1
[bipolar format is considered here]

he multiplies a carrier which is COSINE of one full cycle so
essentially

msk +ve pulse = (one +ve half sinusoid is having width of T time
units) * (one COSINE full cyle having one full cycle within T time
units)

diagram of +ve half sinusoid occupying T time units
_
/ \
/ \
/ \
/ \
/ \
/ \
/-------------------\--
<- -----T--------->

Assuming 8 Samples per Symbol

problem situation: - i have a carrier (assume COSINE) of 2 GHz and 1
cycle corresponds to 1/(2e9) time units. i may not have data at that
rate ..i mean data bit having 1/(2e9) time units ..say i have data
rate at 5MHz so 1 data bit may stretch 1/(5e6) time units. In this
case each DATA BIT
undergoes multiplication with 400 COSINE full cycles



|---------------------------------------------------------------------------------------1
data bit-------------------------------------------|
MSK = | cosine full cycle1/cosine full cycle2/cosine
full cycle3..................................cosine full cycle400 |


(2e9)/(5e6) = 400.

questions
1. is my understanding correct.
2. is the abrupt phase change still contained (i mean is the purpose
of MSK still maintained..i meant will there wont be sudden abrupt
phase changes for the final MSK symbol.


Thanks
A.Ahmed