Base station MAC Data Structures

Base station MAC Data Structures

• Reservation table
  • Indexed by VPI
  • Up-stream, down-stream reservations + Antenna info etc.
• Reservation schedule
  • FIFO per traffic type
  • One entry per VPI
• Frame schedule
  • Cells up (includes ACK response)
  • Cells down (used for ACK response)
  • RRs up

Implementation of the MAC protocol in ORCA FPGA

Internal data structures implemented in SRAM on the MAC processor FPGA

Reservation Table

per VPI, ie per mobile list of reservations in up and down-stream directions

includes currently selected antenna for each mobile