name: DRB
full_form: Data Radio Bearers
context: 8.2.2.7.2.1 Test Purpose (TP) (1) with { UE in NR RRC_CONNECTED state with NR-DC with SCG } ensure that { when { UE receives an RRCReconfiguration message to modify SCG DRB to Split DRB } then { UE reconfigures the DRB and sends an RRCReconfigurationComplete message } } (2) with { UE in NR RRC_CONNECTED state with NR-DC with Split DRB } ensure that { when { UE receives an RRCReconfiguration message to modify Split DRB to MCG DRB } then { UE reconfigures the DRB and sends an RRCReconfigurationComplete message } } (3) with { UE in NR RRC_CONNECTED state with NR-DC and MCG DRB } ensure that { when { UE receives an RRCReconfiguration message to modify MCG DRB to Split DRB } then { UE reconfigures the DRB and sends an RRCReconfigurationComplete message } } (4) with { UE in NR RRC_CONNECTED state with NR-DC with Split DRB } ensure that { when { UE receives an RRCReconfiguration message to modify Split DRB to SCG DRB } then { UE reconfigures the DRB and sends an RRCReconfigurationComplete
description: Data Radio Bearers (DRBs) are communication links between network endpoints, specifically referring to the bearer configurations for data transmission in a New Radio (NR) Dual Connectivity (DC) setup. DRBs can be configured as Single Cell Group (SCG), Split, or Master Cell Group (MCG) bearers, each with distinct characteristics and uses within the 5G network.
explanation: The context describes DRBs as communication links or bearers for data transmission in a 5G network, directly connecting network endpoints. This role aligns with the definition of a Connection.
section_title: 8.2.2.7.2Bearer Modification / Handling for bearer type change without security key change / NR-DC
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