name: RB
full_form: Radio Bearer
context: transmit, receive, or either transmit or receive on the RB set in the symbol. An RB set of a symbol is equivalent to being configured as hard if an IAB-DU would transmit a SS/PBCH block, PDCCH for Type0-PDCCH CSS sets configured by pdcchConfigSIB1, or a periodic CSI-RS in the RB set of the symbol, or would receive a PRACH or a SR in the RB set of the symbol. When an RB set of a downlink, uplink, or flexible symbol is configured as soft, the IAB-DU cell can respectively transmit, receive or either transmit or receive on the RB set in the symbol only if - the IAB-MT does not transmit or receive on the RB set during the symbol of the IAB-DU cell, or - with respect to all serving cells, the IAB-MT would transmit or receive on the RB set during the symbol of the IAB-DU cell, and the transmission or reception on the RB set or any RB set that is configured as unavailable or configured as soft and not indicated as available during the symbol of the IAB-DU cell is not changed due to a use of
description: A Radio Bearer (RB) refers to a logical channel that carries user data or control information between the UE and the network. It represents a connection or communication link for transmitting, receiving, or both, specific types of data such as SS/PBCH blocks, PDCCH, CSI-RS, PRACH, or SR within the context of integrated access-backhaul operation in 5G networks.
explanation: The provided text describes a Radio Bearer (RB) as a logical channel facilitating data transmission between a User Equipment (UE) and the network. This definition clearly aligns with the characteristics of a connection, establishing a link for communication.
section_title: 14Integrated access-backhaul operation
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