6.3F Output power dynamics for shared spectrum channel access
38.101-13GPPNRPart 1: Range 1 StandaloneRelease 17TSUser Equipment (UE) radio transmission and reception
6.3F.1 Minimum output power
The requirements for minimum output power in clause 6.3.1 apply.
6.3F.2 Transmit OFF power
The requirements for Transmit OFF power in clause 6.3.2 apply.
6.3F.3 Transmit ON/OFF time mask
The transmit power time mask defines the transient period(s) allowed between transmit OFF power as defined in clause 6.3F.2 and transmit ON power symbols (transmit ON/OFF). The transmit power ON/OFF time mask specified in clause 6.3F.3.2 supercedes the ON/OFF masks specified in clause 6.3.3; however, between continuous ON-power transmissions the requirements in clause 6.3.3 apply. Unless otherwise stated the requirements in clause 6.5F apply also in transient periods.
6.3F.3.2 General ON/OFF time mask
The general ON/OFF time mask defines the observation period between transmit OFF and ON power and between transmit ON and OFF power for each SCS as illustrated below in Figure 6.3F.3.2-1. ON/OFF scenarios include: contiguous, and non-contiguous transmission, etc.
The OFF power measurement period is defined in a duration of at least one slot excluding any transient periods. The ON power is defined as the mean power over the duration of at least one slot excluding any transient period and non-transmitted symbols. The leading transient period starts 5us before the beginning of the first symbol of transmission and extends 10us into the transmission including the CP extension if applicable. The trailing transient period starts 5us before the end of transmssion and extends 5us beyond the end of transmission.
Figure 6.3F.3.2-1: General ON/OFF time mask for shared spectrum channel access
End of OFF power
Start of OFF power
Start of ON power
Start of transmission
End of transmission
End of ON power
* The OFF power requirements does not
apply for DTX and measurement gaps
6.3F.3A General ON/OFF mask for CA
6.3F.3A.1 General ON/OFF mask for inter-band CA
For inter-band carrier aggregation with uplink assigned to two bands, the general output power ON/OFF time mask specified in clause 184.108.40.206 is applicable for the NR uplink carrier while the general output power ON/OFF time mask specified in clause 6.3F.3 is applicable for the carrier operating with shared spectrum access. The OFF period as specified in clause 220.127.116.11 and clause 6.3F.3 shall only be applicable for each component carrier when all the component carriers are OFF.
6.3F.4 Power control
The requirements on power control accuracy apply under normal conditions.
6.3F.4.2 Absolute power tolerance
The absolute power tolerance requirements of clause 18.104.22.168 apply at the start of a contiguous transmission or non-contiguous transmission with a transmission gap larger than 40 ms.
6.3F.4.3 Relative power tolerance
The relative power tolerance requirements of clause 22.214.171.124 apply if the transmission gap between the target sub-frame and the reference sub-frame is less than or equal to 40 ms.
6.3F.4.4 Aggregate power tolerance
The aggregate power tolerance requirements of clause 126.96.36.199 apply during non-contiguous transmissions within 41ms with respect to the first UE transmission.