Enhanced Uplink Scheduling for Continuous Connectivity in High Speed Packet Access Systems

Provided by: Scientific Research
Topic: Mobility
Format: PDF
The efficiency of High Speed Packet Access (HSPA) systems is mainly based on Channel Quality Information (CQI) reports transmitted by User Equipment (UE) to Node B. In this paper, the authors propose an improved CQI prediction scheme based on a Finite State Markov Chain (FSMC) model for wireless channel, in order to reduce CQI signaling overhead in the HSPA system. Then, they introduce an Enhanced Uplink Packet Scheduling (EUPS) scheme to provide Quality of Services (QoS) guaranteed for continuous packet connectivity in the Enhanced UpLink (EUL). EUPS serves the active UEs not only according to buffer status but also according to reported state of the wireless channel of each UE.

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