Hsiou-Wen Chu

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3GPP defines the Policy and Charging Control (PCC) architecture to enforce network resources dynamically and to manage charging functions. In this paper, we present the design and implementation of Group Accounting System (GAS). GAS is based on the PCC architecture and is integrated with the IP Multimedia Subsystem (IMS) of Chunghwa Telecom. GAS allows a(More)
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