User Manual

Contents

4Motion xii System Manual

Contents

Chapter 1 - System Description

1.1 About WiMAX................................................................................................................3

1.2 4Motion Solution ..........................................................................................................4

1.2.1 4Motion Solution Highlights.................................................................................4

1.2.2 WiMAX Network Reference Model......................................................................6

1.3 The Base Transceiver Station...................................................................................13

1.3.1 The BreezeMAX Shelf.......................................................................................13

1.3.2 NPU...................................................................................................................15

1.3.3 AU .....................................................................................................................17

1.3.4 PIU ....................................................................................................................19

1.3.5 PSU...................................................................................................................19

1.3.6 AVU...................................................................................................................19

1.3.7 ODU ..................................................................................................................20

1.3.8 Power Feeder....................................................................................................21

1.3.9 Antenna.............................................................................................................21

1.3.10 GPS...................................................................................................................22

1.4 Element Management Systems.................................................................................23

1.4.1 AlvariSTAR™....................................................................................................23

1.5 Specifications.............................................................................................................25

1.5.1 Modem & Radio ................................................................................................25

1.5.2 Sensitivity..........................................................................................................25

1.5.3 ODUs ................................................................................................................26

1.5.4 AU - ODU Communication................................................................................31