Isfahan University of Technology
Protocols and Network Aspects of SDR
H. Narimani
course project spring 2007
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| The Network Access and Connectivity Channel (NACCH) | |
| Full flexibility of mobile communication systems can only be achieved if connectivity to all possible wireless access networks is ensured. 'Fettweis' proposes, to enable this connectivity, a network access and connectivity channel (NACCH) in combination with a minimum air interface standard enabling access to this channel. This symbiosis of minimum air interface and signaling channel is intended to provide not only the basic connectivity between network and mobile terminal but to be independent from possible co-located access network standards. Another task of the NACCH is to enable basic extra access standard network mobility management features, such as tracking and paging of a terminal as it roams across the boundaries of different access networks. This cross standard mobility management has to be active at least until the terminal has been configured – from the always inherent ‘minimum’ functionality to a complete configuration. | |
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| The NACCH proposal assumes support of minimal connectivity to enable terminal configuration to the required wireless access configuration, independent of the current geographical position. To enable this, NACCH has to include a basic type of mobility management, authentication and registration facilities, call paging, and call establishment signaling, and also an interface to define traffic channels. | |
