name: CBRA
full_form: Contention Based Random Access
context: UE power ramping, the UE may perform MSG1 retransmission as indicated by the network. (a) CBRA with 4-step RA type (b) CBRA with 2-step RA type (c) CFRA with 4-step RA type (d) CFRA with 2-step RA type (e) CFRA without network response with 4-step RA type Figure 9.2.6-1: Random Access Procedures Figure 9.2.6-2: Fallback for CBRA with 2-step RA type For random access in a cell configured with SUL, the network can explicitly signal which carrier to use (UL or SUL). Otherwise, the UE selects the SUL carrier if and only if the measured quality of the DL is lower than a broadcast threshold. UE performs carrier selection before selecting between 2-step and 4-step RA type. The RSRP threshold for selecting between 2-step and 4-step RA type can be configured separately for UL and SUL. Once started, all uplink transmissions of the random access procedure remain on the selected carrier. The network can associate a set of RACH resources with feature(s) applicable to a Random Access procedure:
description: Contention Based Random Access (CBRA) is a procedure used in the random access process, where the UE performs power ramping and may retransmit MSG1 as indicated by the network. It involves either a 2-step or 4-step RA type and is associated with specific RACH resources and features.
explanation: The context describes CBRA as a sequence of actions (power ramping, retransmission) performed by the UE within the random access process, guided by network indications. This clearly defines it as a procedure.
section_title: 9.2.6Random Access Procedure
biotag_Context: B-Device,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,B-Procedure,O,O,O,O,O,B-Procedure,O,O,O,B-Procedure,I-Procedure,O,O,O,O,O,B-Procedure,O,O,B-Procedure,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-Device,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,B-Connection,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,B-Measurement,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,B-Connection,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-Connection,O,O,O,O,O,O,B-Procedure,I-Procedure,O
biotag_Description: B-Procedure,I-Procedure,I-Procedure,I-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,B-Connection,O,O,O