Overview and evaluation of licensed assisted access for LTE-advanced

Licensed Assisted Access (LAA), a new LTE based technology for the unlicensed bands, is a promising way for cellular operators to complement their existing service on the licensed spectrum. How LAA can co-exist with Wi-Fi in a fair manner has attracted great interest and generated intense discussions in industry and standards organizations as well as regulatory bodies. In this paper, we provide an overview of the design challenges and key LTE enhancements for LAA, as well as co-existence evaluations which demonstrate that LAA can share the unlicensed spectrum with Wi-Fi in a fair manner.