Micro-credit certificate for access to services on heterogeneous access networks

摘要

A method and system for conducting transactions in a wireless communication system using a micro-credit certificate. A temporary certificate is issued to a mobile node. The temporary certificate is presented to a heterogeneous access network. The mobile node is authenticated using the temporary certificate. A service is then accessed with the mobile node. A credit amount associated with the mobile node for accessing the service is then deducted from the credit amount associated with the temporary certificate.