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Quality of Service Drivers in LTE and LTE-A Networks

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Abstract

In the last years, cellular operators have experienced a rapid growth of mobile broadband subscribers and traffic volume per subscriber. At the same time, operators are moving from a single to a multi-service offering by adding new services such as multimedia telephony and mobile-TV. In this challenging scenario, the Quality of Service (QoS) concept provides network and service operators with a set of tools to enable service and subscriber differentiation. This paper presents an overview of the QoS drivers in Long-Term Evolution (LTE) and LTE-Advanced (LTE-A) networks, focusing on their QoS policy control capabilities. Proposals of policy control and management for increasing the QoS in LTE and LTE-A networks are described. This paper also includes a detailed list and analysis of the inputs to the Policy and Charging Rules Function (PCRF) that can be used for policy decision as well as a set of use cases involving the Policy and Charging Control architecture: (1) the analysis of a potential cooperation between the PCRF and a Deep Packet Inspector, and (2) the analysis of a potential interaction between the PCRF and the radio scheduler to provide a consistent end-to-end QoS.

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Acknowledgments

This work has been partially supported by the Junta de Andaluca (Proyecto de Excelencia TIC 06897) and by the Spanish Government (TEC2010-18451).

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Authors and Affiliations

  1. Department of Communications Engineering, University of Malaga, 29071 , Malaga, Spain

    Gerardo Gómez

  2. Telefonica I+D, 28006 , Madrid, Spain

    Quiliano Pérez, Javier Lorca & Raquel García

Authors
  1. Gerardo Gómez
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  2. Quiliano Pérez
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  3. Javier Lorca
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  4. Raquel García
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Correspondence to Gerardo Gómez.

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Gómez, G., Pérez, Q., Lorca, J. et al. Quality of Service Drivers in LTE and LTE-A Networks. Wireless Pers Commun 75, 1079–1097 (2014). https://doi.org/10.1007/s11277-013-1409-0

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  • DOI: https://doi.org/10.1007/s11277-013-1409-0

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