Wireless Technology Terms, Glossary and Dictionary
PUSC: Partially Used Sub-Carrier
Partially Used Sub-Carrier (PUSC), sometimes called Partially Used Sub-Channel, was first defined in the IEEE802.16d (Fixied WiMAX) for the OFDMA PHY layer. Basically, the IEEE802.16e (Mobile WiMAX) uses the same OFDMA sub-channelization structure and its extension to address mobility has retained the OFDMA concept for FUSC (Fully Used Sub-carrier) and PUSC. Use of FUSC, mainly in the DownLink, and PUSC in both DL and UL as defined in 16d or 16e with Reuse 1 will endow the WRAN system with the needed capability and flexibility to configure the WRAN in different scenarios with manageable interference among the Base Stations where different Service Providers may deploy the system in the same region using the same free TV channel.
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