name: LB
full_form: Back
context: This message is only sent in the direction SS to UE. where message type is: where UE test loop mode is: X2=0 and X1=0 then UE test loop mode 1 loop back scheme according to 5.3.2.6 shall be performed by the UE (loopback of RLC SDUs or PDCP SDUs). X2=0 and X1=1 then UE test loop mode 2 loop back scheme according to 5.3.2.7 shall be performed by the UE (loopback of transport block data and CRC bits). X2=1 and X1=0 then the UE test loop mode 3 RLC SDUcounting scheme according to section 5.3.2.8a shall be performed by the UE (counting of received RLC SDUs). X2=1 and X1=1 then the UE test loop mode 4 loop back scheme according to section 5.3.2.8b shall be performed by the UE (loopback of IP PDUs). For backward compatibility reason, the bit 3 of octet 1 shall not be used and shall always be set to zero. where UE test loop mode 1 LB setup is: N is the number of LB entities in the LB setup list and is less than or equal to 5. where LB setup list is: where LB Setup RB IE#k is: Z15..Z0 = Uplink
description: Loop Back (LB) refers to a test loop mode in the UE test loopback scheme, which involves the loopback of RLC SDUs or PDCP SDUs. It is used for testing purposes and is not a specific network function, protocol, or technology.
explanation: The context describes LB as a testing mechanism within a specific UE testing framework. It doesn't represent a standalone network element, protocol, or technology, making it fall under the 'Miscellaneous' category.
section_title: 6.2CLOSE UE TEST
biotag_Context: O,O,O,O,O,O,O,O,B-Miscellaneous,O,O,O,O,O,O,O,B-Device,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,B-Device,O,O,B-Protocol,O,O,B-Protocol,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,B-Device,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,B-Protocol,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Protocol,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,O,O,B-Miscellaneous,O,O,O,O,O,O,O,B-Miscellaneous,O,O,O,B-Miscellaneous,O,O,O,O,O,O,O,O,O,O,O,B-Miscellaneous,O,O,O,O,B-Miscellaneous,O,B-Connection,O,O,O,O,B-Connection
biotag_Description: O,B-Miscellaneous,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,B-Protocol,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O