Abstract: A method for reporting accounting information of a user by an accounting client is provided. The method includes the following steps. The accounting client correlates the accounting information of all service streams established by the user, generates an accounting packet based on a user granularity, and reports the accounting packet to an accounting server. An accounting system and an accounting client are further provided, where the accounting client correlates the accounting information of all service streams established by the user, generates the accounting packet based on the user granularity, and reports the accounting packet to the accounting server, so that an access network supporting accounting based on a service stream may report the accounting information based on the user granularity to a core network. Therefore, if the access network uses an accounting mode based on the service stream, the access network may also support a user-based accounting mode.

Abstract: A method, a system and an apparatus for accounting in a network. The method includes: receiving accounting information; acquiring information of an access network; generating a bill containing the information of the access network according to the accounting information and the information of the access network; and the bill being used for performing charge settlement with an access network provider of the access network.