Prerequisite of OCS Package SAPKE604XX could not be met

Hi

I downloaded 8 last available HR packages and extracted them in EPS/in. they have all a status 'Not imported' in OCS Package Directory of SPAM. But when I tried to define a queue to import them, I saw only 5 of the 8 packages.

The tree others need a prerequisite the SAP Applcation Platform (SAP_AP) 'SAPKNA7025'.

Now, I must implement the last SAP Applcation Platform packages in order to be able implemeting the last HR patchs.

My question is : is there any dependencies between SAP_AP and SAP_BASIS / SAP_ABA ?

Thanks in advance for your help

Regards