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To attract more users to use mobile packet services, mobile operators have begun to provide flat-rate packet services in the WCDMA system with High Speed Downlink Packet Access (HSDPA). Since usage does not incur extra cost, flat-rate users may always stay on line and occupy most of the radio channel resources. In this paper, the authors consider a HSDPA network serving two types of user packets: Charged Packets (CPs) and Flat-Rate Packets (FRPs). They consider the balance between serving the FRPs and CPs. Four downlink packet scheduling methods were studied in this paper.
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