| 摘要 |
The invention discloses a method for establishing a Diameter session for packet flow based charging with multiple ways for establishing the Diameter session between a TPF and a CRF. The Diameter session between the TPF and the CRF can be established for each bearer of each subscriber, which means that for GPRS the Diameter session between the TPF and the CRF is established for each PDP Context State Model of each subscriber. The Diameter session between the TPF and the CRF can be established for the bearers with a same APN of each subscriber. The Diameter session between the TPF and the CRF can be established for all the bearers of each subscriber. The invention improves the mechanism for establishing Diameter sessions between the TPF and the CRF and makes the implementation of the charging flow more integrated. Moreover, the multiple ways for establishing Diameter sessions between the TPF and the CRF provided in the present invention can be flexibly selected according to the practical charging applications.
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