TrM - Transparent Mode

In UMTS information may be transmitted across the Iu interface in either TrM (Transparent Mode) or SMpSDU (Support Mode for predefined SDU size mode) using the Iu Protocol. The transparent mode is intended for those RAB (Radio Access Bearer) that do not require any particular service from the Iu protocol.

NetX

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

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