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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/44794

Title: 3GPP QoS-based scheduling framework for LTE
Authors: Ameigeiras, Pablo
Navarro-Ortiz, Jorge
Andrés-Maldonado, Pilar
López-Soler, Juan Manuel
Lorca, Javier
Pérez-Tarrero, Quiliano
García-Pérez, Raquel
Issue Date: 2016
Abstract: This paper proposes the design of a scheduling framework for the downlink of the Long Term Evolution (LTE) system with the objective of meeting the Quality of Service (QoS) requirements as defined by the QoS architecture of the 3G Partnership Project (3GPP) specifications. We carry out a thorough review of 3GPP specifications analyzing the requirements of the 3GPP QoS architecture. LTE bearers may be associated with a Guaranteed Bit Rate (i.e., GBR bearers) or not (i.e., non-GBR bearers). Additionally, the specifications establish a Packet Delay Budget (PDB) to limit the maximum packet transfer delay. To achieve our goal, we design a channel-aware service discipline for GBR bearers which is able to fulfill not only the GBR but also the PDB. Additionally, we also design an algorithm for prioritizing GBR and non-GBR bearers from different QoS Class Identifiers (QCIs) following 3GPP QoS rules. We compare the proposed framework with two reference schedulers by means of network-level simulations. The results will show the ability of the proposed framework to address the QoS requirements from 3GPP specifications while providing an interesting performance from a spectral efficiency viewpoint.
Sponsorship: This work is partially supported by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund (project TIN2013-46223-P).
Publisher: Springer International Publishing
Keywords: Long Term Evolution (LTE)
Guaranteed BIT Rate (GBR)
Quality of Service (QoS)
QoS Class Identifier
Packet Delay Budget (PDB)
URI: http://hdl.handle.net/10481/44794
ISSN: 1687-1499
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Ameigeiras, P.; et al. 3GPP QoS-based scheduling framework for LTE. Eurasip Journal on Wireless Communications and Networking, 2016: 78 (2016). [http://hdl.handle.net/10481/44794]
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