name: NUL
full_form: Normal Uplink
context: Figure 5.2.1.4-1: Test model for NR/5GC Layer3 supplementary uplink testing The NR/5GC Layer3 supplementary uplink test model builds on top of the NR/5GC Layer3 test model, with the differences specified hereafter. In the SS side: - The NR cell is configured with one uplink (NUL) carrier and one supplementary uplink (SUL) carrier. See NOTE 1. - The SUL routing information shall be provided by SS in the common part of the indication ASP when the data is received from the SUL carrier. - The SS shall monitor both NUL carrier and SUL carrier for PRACH reception. TTCN checks whether RA Msg1 and RA Msg3 are received from NUL or SUL carrier using the SUL routing information in the indication ASP. - The UL grants are configured from TTCN over the system control port for PUSCH transmission on the NUL carrier or the SUL carrier. NOTE 1: While TS 38.508-1 [5] defines an SUL carrier as a pseudo-standalone NR Cell 33, in the present test model, the SUL carrier is an additional carrier to the NR
description: Normal Uplink (NUL) refers to a standard uplink connection or carrier in the context of 5G New Radio (NR) and 5G Core Network (5GC). It is used for transmitting data from the user equipment (UE) to the network, contrasting with supplementary uplinks which provide additional capacity.
explanation: The classification as a Connection is justified because NUL is described in the context of being an uplink carrier for transmitting data between the UE and the network. The distinction made between NUL and SUL (Supplementary Uplink) further emphasizes its role as a standard connection pathway.
section_title: 5.2.1.4NR supplementary uplink
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