Test Report of Land Mobile Radio Connectivity via Shared Satellite IP Networks and the Internet

摘要

The National Law Enforcement and Corrections Technology Center--Northwest's (NLECTC-NW) Land Mobile Radio Connectivity via Shared Satellite IP Networks and the Internet Test and Evaluation Project goals were to conduct limited, impartial, test and evaluation of commercial off-the-shelf equipment and affordable commercial satellite systems that might prove successful in linking remote public safety communications systems to larger urban, land-based, communications networks. Tests were conducted using commercially available Voice over Internet Protocol gateway equipment, satellite communications services, and network element equipment. The testing and evaluation focused on public safety and mobile radio communications links between urban areas and vastly remote Alaskan communities. The tests evaluated and demonstrated voice over Internet protocol interface units, voice-grade satellite communications (Satcom) services, as well as Satcom optimized virtual private network products. This test report describes a limited, impartial, test and evaluation of commercial off-the-shelf equipment that could potentially provide these links. Session test results indicate remote users of rural land mobile radio systems can be connected to users on the current mainland Alaska Land Mobile Radio system (and other similar systems) with some caveats. Connections can utilize low-cost shared satellite Internet protocol (IP) connectivity and the Internet, given highly tailored network design and equipment choices.