PXI PCI eXtensions for Instrumentation PXI (PCI eXtensions for Instrumentation) is a modular instrumentation platform
PUSC (Partially Used Subcarriers (for WiMAX)) Partially Used Subcarriers (PUSC) is a subcarrier allocation scheme used
PUCCH Physical Uplink-Control Channel The Physical Uplink Control Channel (PUCCH) is an essential component