Receiver SOAP Adapter - Connection Parameters

I have a scenario where I need to pass some data (authentication data) to a web service.

I tried using Connection Parameters - Connection User Authentication, and it seems it does not go through SOAP HEADER.

Does anybody know I can pass data to a Web Service without using payload??

Actually I need to pass information set up in communication channel like user authentication.

Thanks and Regards,

Fabio Ramos