clarification - DB restore - Database version

Hi,

We have a requirement for a system refresh from production to quality.

Quality system Oracle version : 11:2:0:3:0

Production system Oracle version : 11.2.0.4.0

SQL> SELECT * FROM v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production

SQL> SELECT * FROM v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
PL/SQL Release 11.2.0.4.0 - Production
CORE 11.2.0.4.0 Production
TNS for Linux: Version 11.2.0.4.0 - Production
NLSRTL Version 11.2.0.4.0 - Production

I believe we cannot do a DB restore with this version mismatch, Can anyone clarify this.

Remaining everything is fine, SAP, Kernel and DB client and everything is same except the oracle version.

If I have to go for Oracle version upgrade, I believe I have to download the below marked file. Can someone clarify this,

As a alternative and last option, I am planning for Homogeneous system copy using SWPM, If the DB restore would not work.

Please share your inputs

Thanks, Ganesh