name: SD-RSRP
full_form: Sidelink Discovery RSRP
context: trigger evaluation in case of no data transmission. The thresholds for SD-RSRP and SL-RSRP can be configured separately for the trigger evaluation of U2U relay selection or reselection. The same threshold value(s) are applied for all the discovery models including DCR with integrated discovery. The same threshold value(s) are applied for relay selection and relay reselection. The U2U Remote UE may trigger U2U Relay selection in the following cases: - When the SL-RSRP or SD-RSRP between U2U Remote UEs is below a (pre)configured signal strength threshold
description: SD-RSRP (Sidelink Discovery Reference Signal Received Power) is a measurement parameter used in sidelink discovery and relay selection/reselection procedures. It represents the signal strength of the reference signals received by user equipment (UE) during sidelink communication.
explanation: The context explicitly mentions SD-RSRP as a threshold value for triggering U2U relay selection or reselection, indicating its role as a measurement parameter in evaluating signal strength.
section_title: - When U2U Remote UE receives an indication to trigger U2U relay selection from the upper layer of the UE. The U2U Remote UE may trigger U2U Relay reselection in the following cases: - When the SL-RSRP or SD-RSRP of the current U2U Relay UE is below a (pre)configured signal strength threshold- When U2U Remote UE receives an indication from the upper layer due to detecting PC5 RLF
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