ZTE

ZTE Communications ›› 2009, Vol. 7 ›› Issue (1): 49-53.

• Operational Application • Previous Articles     Next Articles

QoS Mechanism in EPS

Huang Tao, Zhang Zhijiang, Liu Yunjie   

  1. China Unicom Co . Ltd . , Beijing 100140 , P. R . China
  • Online:2009-03-25 Published:2020-03-03
  • About author:Huang Tao graduated from Beijing University of Posts and Telecommunications (BUPT), and is a post doctorate of Post-Doctoral R&D Center of China Unicom Co. Ltd. He focuses his research on the next generation mobile communication networks and network convergence.

    Zhang Zhijiang is a senior engineer and the general manager of the Technical Department of China Unicom Co. Ltd. He is also a member of the information security expert group of the National High-Tech Research and Development Plan of China ("863" Program). He has long been engaged in the planning, construction, and operation management of telecom networks.

    Liu Yunjie is a senior engineer and the director of the Science and Technology Committee of China Unicom Co. Ltd. He became a member of Chinese Academy of Engineering in November, 2005. He is also a doctoral advisor of BUPT. He focuses his research on the convergence and evolution of next generation networks and telecom networks.

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Abstract: To adapt to the development of mobile communication technologies in the next 10-year timeframe and better meet an ever-increasing demand for data services, 3GPP has started the Long Term Evolution (LTE ) and System Architecture Evolution (SAE ) study projects. In view of the high-speed and bursty feature of future data services, the Evolved Packet System (EPS ) makes quite a few enhancements and improvements in Quality of Service (QoS ). By introducing such technologies as default bearer and aggregate resource scheduling, the EPS truly realizes the objective of "Always Online" for users, improves data rates and thus enhances user experience ultimately. Furthermore, an appropriate mapping between the EPS QoS Class Identifier (QCI ) parameter and Universal Mobile Telecommunication System (UMTS ) QoS parameter is designed regarding future interoperability scenario between UMTS Terrestrial Radio Access Network (UTRAN ) and Evolved UTRAN (E-UTRAN ).