TABLE OF CONTENTS Connection types are the purposes (such as for control or for transfer of user data) and characteristics (such as packet or dedicated circuits) of physical and/or logical communication paths. The types of connections in the WiMax system include a basic connection, primary management connection and a transport connection.
A basic connection is a WiMax control channel that performs basic link management functions such as setting up (establishing), changing to physical characteristics (e.g. power level and timing) and terminating radio connections. All WiMax connections much have a basic connection.
A primary management connection is used to transport messages that are less time sensitive and are typically used for higher level functions such as authentication and the setup of logical channels.
A secondary management connection is used to transport messages that for higher level functions such as IP address assignment (DHCP), equipment configuration control (SNMP) and file transfer (TFTP). Secondary connections are optional connections.
A transport connection is a unidirectional connection that is used to transport user data. Each transport connection has unique quality of service (QoS) parameters associated with it. Transport connections are typically assigned in pairs (uplink and downlink).
Figure 1.7 shows the different types of connections used in a WiMax system. This example shows that a basic management connection is a control channel that is used for the setup and rapid management physical links (such as power and time control). The primary management connection is a control channel that...
