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(4.3) Rule of class B
(1) Case 1
AU2700/5400
A A
C
K
C
Host A
C
K
B
<T3 <T2 <T3
t3<<T4 t1<<T1 t4< T5<
(2) Case 2
AU2700/5400
A B
Host A
C
K
<T3 <T3
t3<<T4 T5<
(3) Case 3
AU2700/5400
A
C
K
Host A C
<T2 <T2
t4< t2<<T1
(4) Case 4 (Abnormal Case 1)
AU2700/5400
A A B
Host N
A
K
N
A
K
<T3 <T3 <T3
t3<<T4 T6< t3<<T4 T5<