This paper describes the semantic PARLAY X with QoS / QoE for 4G network. New open network service delivery platform standards such as PARLAY X support dynamically the seamless mobile application on top of different wireless network technology in face of changing value chains and business models. But the existing PARLAY X lacks in considering QoS / QoE. Therefore, to solve this issue, this paper suggests the semantic PARLAY X with QoS / QoE. The object of this paper is to support the architecture and the Application Programming Interface (API) of the network service for QoS / QoE in NGN. The semantic PARLAY X can provide users with QoS / QoE in network according to the detected context and user's preference, after detecting the context such as location and speed and user's preference. The architecture of the semantic PARLAY X is comprised of the functions for context-awareness, adaptation, personalization. The semantic PARLAY X is to make a role of the broker between SCE and PARLAY gateway.
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