A Codec is a message coder/decoder. The Codec implemented in the N6432A, N6433A, N6442A and N6443A converts TTCN-3 representations of IEEE 802.16e messages to and from TLV (Type Length Value) octets.
The IEEE 802.16e specification continues to be revised by the IEEE. The WiMAX Forum selects specific revisions of the IEEE 802.16e standard and directs the WiMAX industry to harmonize around these revisions. At the time of writing, the industry is harmonized around the IEEE 802.16-2004 Corrigendum 2 Draft 3 (Cor2/D3) version of the standard.
N6432A, N6433A, N6442A and N6443A software updates will include Codec revisions needed to support new message types required by integrated ETSI test cases. Codec updates are also necessary to track any WiMAX industry moves from Cor2/D3 to other versions of the IEEE 802.16e standard.
Each release of N6432A and N6442A includes a “Codec Notes” spreadsheet that provides information on the Codec functions supported by the release.