scope:

The present document specifies the system architecture for the operation of an Evolved Licensed Shared Access (eLSA) System, enabling the provision of spectrum access to many local high-quality wireless networks in dedicated licensed and leasing scenarios.

The eLSA system architecture specification will include the identification and definition of the logical functional elements, interfaces, reference points, the mapping of functions to logical entities as well as the definition of the high-level procedures and information flows enabling assignment and handling of spectrum for the different scenarios considered.

The present document has been developed following, and in accordance with, the system requirements for eLSA captured in ETSI TS 103 652-1 [1] and the feasibility study on temporary spectrum access for local high-quality wireless networks as documented in ETSI TR 103 588 [i.1].