ETSI Completes Specifications for Licensed Shared Access
Thursday, April 06, 2017 | Comments

The European Telecommunications Standards Institute (ETSI) Technical Committee for Reconfigurable Radio Systems (TC RRS) announced the completion of the specification for the support of licensed shared access (LSA). This provides a means to enable spectrum-sharing coordination between LSA licensees and existing spectrum licensees, ensuring quality of service (QoS).

The recently completed specification, ETSI TS 103 379, addresses information elements and protocols for the operation of LSA in the 2.3 – 2.4 GHz band. The document defines the application protocol, also known as LSA1 protocol, on the interface between the LSA controller and the LSA repository, and the content of the information conveyed by this protocol.

With this new specification, ETSI TC RRS completes a set of specifications that opens the way for interoperable implementation of LSA repositories and LSA controllers to support LSA deployments in the initial target band. Extensions to other bands are not precluded, in response to future regulatory requirements. It is the intention to take such future requirements as well as additional features into consideration when starting a new release of the LSA specifications.

“ETSI’s LSA activities are a perfect example of the efficient interaction between the European Commission, CEPT (European Conference of Postal and Telecommunications Administrations) and ETSI,” said Markus Mueck, chairman of ETSI TC RRS. “Within the EC mandate M/512 framework, the regulation and standards challenges were efficiently addressed, leading to a ready-to-use package for LSA technology in Europe.

“Furthermore, ETSI’s specifications have substantially influenced related activities in other regions, such as the FCC report and order on the Citizens Broadband Radio Service (CBRS) in the 3.55 – 3.7 GHz band. LSA-based spectrum sharing is expected to be a key element in the toolbox of regulatory administrations to address future 5G spectrum needs.”

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