How 4G LTE Works
A Fourth Generation Long Term Evolution (LTE) network uses an eNodeB (evolved node B) which is essentially an LTE base station. With the exception of the eNodeB, everything is considered as part of the Evolved Packet Core (EPC) 3000 series, which is considered to be the epicenter of 4G LTE communication traffic. The eNodeB connects to the EPC. The EnodeB and the EPC both are governed by standards which guarantee interoperability and allows the end user access to a 4G LTE network. This provides the dedicated network outlined by the 9/11 Commission.
In an effort to continually think of the ways and situations First Responders will use the network, General Dynamics Mission Systems is currently building a Virtual 4G Core Network (VCN) which is smaller, less expensive and a more versatile EPC which needs no backhaul.
How FirstNet will build the National Network:
- National Core
- Regional Core
- State Core
Ensuring Our Technology Is FirstNet Ready
Tested And Proven
In May 2013, General Dynamics Mission Systems successfully completed phase testing for the National Institute of Standards and Technology (NIST), Public Safety Communications Research (PSCR), long-term evolution (LTE) program. The successful testing is a significant milestone in demonstrating that General Dynamics Mission Systems public safety equipment is capable of supporting the nation's FirstNet initiative.
- General Dynamics Mission Systems is one of only five US based LTE vendors that currently have this important PSCR qualification for RAN and EPC and User Equipment.
- These tests evaluate the products more advanced capabilities including interoperability with land mobile radios, IP multimedia capabilities and roaming which is particularly important when communication network towers are damaged or otherwise unavailable.
Following completion of phase testing, General Dynamics Mission Systems demonstrated its experimental Band Class 14, 4G LTE network for emergency personnel participating in the EDGE Innovation Network's 2013 Winter Institute held at Texas A&M University's Disaster City training facility. Band Class 14 is the designated frequency for US first responders. General Dynamics Mission Systems worked in conjunction with the Texas National Guard, Texas Public Safety officials, Texas A&M Engineering Extension Service (TEEX) and Texas Task Force 1, in conducting a high-level training and testing exercise. Rigorous testing conditions allowed for evaluating our 4G LTE network in the simulated aftermath of an F3 tornado with damaged infrastructure and varied geography.