ETSI TS 103 379 defines the application protocol on the LSA1 interface, between LSA Controller (LC) and LSA Repository (LR) [i.2] (LSA1 protocol), and the content of the LSA Spectrum Resource Availability Information (LSRAI) conveyed by this protocol. It is based on the System Requirements defined in ETSI TS 103 154 [i.1] and the System Architecture and High Level Procedures defined in ETSI TS 103 235 [i.2].

The present document supports the operation of mobile broadband service in the 2 300 MHz - 2 400 MHz band under Licensed Shared Access (LSA), aimed at enabling access for mobile/fixed communication networks (MFCNs) in those CEPT countries where access to the band is foreseen but cannot be provided without restrictions due to Incumbent usage, as documented in ETSI TR 103 113 [i.3]. Application to other bands is not precluded and depends on future regulatory decisions.