scenarios to migrate OS and DB versions

Hi all,

To migrate the perating system (redhat linux 4.5 to 6.x) and database (Oracle 10.2.0.2 to 11g), what are the possible scenarios  and  considerations  to be taken to achieve the migration?

knowing that:

1 - the version of SAP System Landscape SAP ECC is  6.0 NUC with the following levels of SP:

SAP_BASIS    700     0011 SAPKB70011

SAP_ABA       700     0011 SAPKA70011

ST-PI 0005      2005_1_700 SAPKITLQI5

PI_BASIS        2006_1_700 0001 SAPKIPYM01

SAP_BW         700    0012 SAPKW70012

SAP_AP          700    0008 SAPKNA7008

SAP_APPL     600     0009 SAPKH60009

SAP_HR         600     0018 SAPKE60018

SAP Kernel version is 150

2 - The second landscape used and connected to SAP ECC 6.0 is SAP NetWeaver BI 7.0 (ABAP / JAVA).

Thank you in advance.