![]() ![]() ![]() Authentication key agreement protocol is widely used in mutual authentication process, which authenticates mobile user to network and network to mobile user. However, because the radio waves are so exposed and available, they can be intercepted or jammed by anyone who is within range. These radio waves are not restricted by walls or physical boundaries, but rather they are designed to cover, as large as possible wireless cell. One of the principal reasons that security is such a significant issue in cellular system because they rely on radio waves to carry communications. Security, Authentication, Encryption and Access Control are the vital features that must be presented in any communication network. The rapid growth in wireless networking has brought a number of security concerns to the service providers and end users. Software Radio Systems LTE eNodeB - Reading configuration file / etc / srsran / enb. ![]() The full config files can be downloaded here: ![]() The default device for both the eNB and UE. In short, the EARFCN values must be the same across the eNB, both cells and the UE, handover must be enabled in the RR config file and ZMQ made UE Ports Used ¶Īgain for these ports the least significant unit is used to indicate whether the port is being used for Tx or Rx. If you want to use a custom USIM set up this will need to be added to the relevant section in the ue.conf fileĪnd reflected in the user_db.csv to ensure the UE is authenticated correctly. The default USIM configuration can be used, as it is already present in the user_db.csv file used by the EPC to authenticate the UE. # freq_offset = 0 tx_gain = 80 #rx_gain = 40 #srate = 11.52e6 # Example for ZMQ-based operation with TCP transport for I/Q samples device_name = zmq device_args = tx_port = tcp : //* : 2001, rx_port = tcp : // localhost : 2000, id = ue, base_srate = 23.04e6 # dl_earfcn = 3350 #nof_carriers = 1 # netns = ue1 The followingĮxample shows how the ue.conf file must be modified: As well as this, the EARFCN value must be checked to ensure it is the same as that set for the cells in rr.conf. It is also important to remember that the ho_active flag must be set to true in the default cell as well as the cell that has been added.įor the UE configuration, ZMQ must be set as the default device and the appropriate TCP ports set for Tx & Rx and the network namespace ( netns) set. The PCI of each cell with the same EARFCN must be different, such that PCI%3 for the cells is not equal. Note, the TAC of the cells must match that of the MME, and the EARFCN must be the same across both cells and the UE. The following shows an example of the cell added to the existing rr.conf: The rr.conf is where the cells (sectors) are added to the eNB, this is also where the handover flags are enabled. The second most significant unit is used to indicate which cell the port belongs to. By having the least significant unit of each Rx port be 0 and Tx port be 1 the flowgraphīecomes easier to debug. The use of a clear labelling system for the ports is employed to allow for easier implementation of the GRC broker. The following table should make clear how the TCP ports are allocated across the cells: Cell Ports Used ¶ #dl_earfcn = 3350 tx_gain = 80 rx_gain = 40 # Example for ZMQ-based operation with TCP transport for I/Q samples device_name = zmq device_args = fail_on_disconnect = true, id = enb, tx_port0 = tcp : //* : 2101, tx_port1 = tcp : //* : 2201, rx_port0 = tcp : // localhost : 2100, rx_port1 = tcp : // localhost : 2200, id = enb, base_srate = 23.04e6 # Capture Signal to File and Post-Process.Carrier Aggregation using ZeroMQ RF emulation.Running a full end-to-end LTE network on a single computer.How will my contributions to srsRAN be used? What is a Copyright License Agreement (CLA) and why do I need one? ![]()
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