5 Channel access procedures (core part)

37.1073GPPBase Station (BS) requirements and conformance tests for shared spectrum channel accessRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

5.1 Downlink channel access procedure

For downlink operation in Band 46, Band 49, Band n46 and Band n96, a channel access procedure for PDSCH transmission as described in TS 37.213 [5], Clause 4.1.1 is specified.

5.1.1 Channel access parameters

Channel access related parameters for PDSCH are listed in Table 5.1.1-1.

Table 5.1.1-1: Channel access parameters for PDSCH

Parameter	Unit	Value
LBT measurement bandwidth	MHz	10, 20
Energy detection threshold	dBm/20MHz dBm/10MHz	-72 or X (Note) -75
Maximum channel occupancy time	ms	8
NOTE: The specific value X is declared by the vendor.

5.1.2 Minimum requirement

The Base Station shall be able to assess whether the medium is busy or idle with at least 90% probability, using a channel access procedure with the parameters in Table 5.1.1-1.