name: DRNC
full_form: Drift RNC
context: The following figure shows the relation between Iub interface and Iur interface. There are two cases for SRNC (CRNC1) to request radio link management activities in this figure. In case (1), SRNC (CRNC1) sets up/adds/deletes radio links in NodeB1 and NodeB1 is directly controlled by SRNC (CRNC1). In case (2/2bis), NodeB2 is directly controlled by DRNC (CRNC2). If SRNC (CRNC1) wants to set up/add/delete radio links in NodeB2, SRNC (CRNC1) will send request to DRNC (CRNC2), and DRNC (CRNC2) set up/add/delete radio links in NodeB2. In such case, if DRNC (CRNC2) fails to set up/add radio links in NodeB2 and receives failure message from NodeB2, DRNC (CRNC2) will send failure message back to SRNC (CRNC1). Furthermore if DRNC (CRNC2) has problem inside and fails to send request to NodeB2, it will send failure message back to the SRNC (CRNC1) directly. Figure: Relation between Iub interface and Iur interface Subclause 4.9 has separated measurements for both Iur interface and Iub interface.
description: The DRNC (Drift RNC) is a network function that controls NodeB2 and manages radio link setup, addition, and deletion in the context of the Iur interface. It interacts with SRNC (CRNC1) to facilitate these operations and reports failures back to SRNC if necessary.
explanation: The classification as a Network Function is based on the role of DRNC in controlling NodeB2, managing radio links, and interacting with SRNC for coordination purposes, as described in the provided context from 3GPP TS 32.403.
section_title: 4.9.1.2Relation between Iub measurements and Iur measurements
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biotag_Description: O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O