NS - Network Service

The Network Service performs the transport of NS SDU (Service Data Unit) between the SGSN (Serving GPRS Support Node) and BSS (Base Station System). It also provides indications of congestion. The NS Layer is split into two sublayers, the Network Service Control layer and the Subnetwork Service layer. The Subnetwork Service layer currently utilizes Frame Relay.

NetX

  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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