Nowadays, mobile operators are faced with a problem of shortage of radio resources required for qualitative customer services. One of the possible solutions to this problem is the framework named LSA (Licensed Shared Access), which is proposed by ETSI. In this paper we describe two possible Radio Admission Control scheme models of the 3GPP LTE cellular network within LSA framework as finite queuing systems with reliable (single-Tenant band) and unreliable (multi-Tenant band) servers. For both models, we consider the traffic, which is intolerant to delays. The main models quality of service (QoS) measures are the blocking probability (probability, that a target user's request will be blocked), probability of service interruption (probability, that for a target user's request processed on the multitenant band the service will be interrupted), and probability of service band changing (probability that a target user's request processed on the multi-Tenant band will continue its service on the singletenant band). For the numerical analysis, an aeronautical telemetry scenario was considered as an example of the application of the LSA framework. © 2017 CEUR-WS. All rights reserved.