The OpenAirInterface application programming interface for schedulers using carrier aggregation

Kaltenberger, Florian; Roux, Cédric; Buczkowski, Mateusz; Wewior, Maciej
ISWCS 2016, 13th International Symposium on Wireless Communication Systems: SAS5G: Workshop on Spectrum Aggregation and Sharing for 5G Networks (ISWCS'2016-SAS5G Workshop), September 20-23, 2016, Poznan, Poland

Carrier aggregation (CA) is one of the key features of LTE-Advanced. On one hand it allows to boost the system capacity and on the other hand it enables dynamic spectrum
access, such as licensed assisted access (LAA) and licensed shared access (LSA). Efficiently exploiting CA is however not a trivial task; the main challenges are scheduling, load balancing, dynamic carrier activation/deactivation, etc. Due to the complexity of these systems, experimentation is needed to evaluate and test these
features. OpenAirInterface is a well know open-source software defined radio solution that allows for experimentation with LTE 4G systems. In this paper we are going present two extensions of the current version of OpenAirInterface: Carrier Aggregation and an application programming interface (API) for schedulers that allows a third party to plug-in their own scheduler. These two extensions allow for more control in the experimentation process than with commercial equipment.

Systèmes de Communication
Eurecom Ref:
© 2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.