An overview of the ETSI-BRAN HIPERACCESS physical layer air interface specification

The ETSI-BRAN-HIPERACCESS standard is confined to specify the radio subsystem above 11 GHz of a Point-to-Multi-Point (PMP) interoperable system consisting of the Physical (PHY) layer and the Data Link Control (DLC)/Convergence Layer (CL)which are both core network independent. The paper gives a description of the Physical Layer, which specifies the transmission scheme in order to allow interoperability between equipment developed by different manufacturers. This is achieved by standardizing all base-band signal processing structures in the transmitter side by using the most technology advanced architecture and components. The system, by employing adaptive coding and modulation (i.e. individual link adaptation) and cell sectorization techniques, offers a high spectral efficiency and a great flexibility for the deployment. Furthermore, the specification includes basic RF aspects and those other parameters necessary for radio regulatory purposes.