What is RSCP (Received Signal Code Power) in LTE? When is RSCP applicable in LTE system?
UTRA FDD CPICH RSCP
RSCP (Received Signal Code Power), the received power on one code measured on the Primary CPICH. The reference point for the RSCP shall be the antenna connector of the UE. If Tx diversity is applied on the Primary CPICH the received code power from each antenna shall be separately measured and summed together to a total received code power on the Primary CPICH. If receiver diversity is in use by the UE, the reported value shall not be lower than the corresponding CPICH RSCP of any of the individual receive antenna branches.
UTRA TDD P-CCPCH RSCP
Received Signal Code Power, the received power on P-CCPCH of a neighbour UTRA TDD cell.
The reference point for the RSCP shall be the antenna connector of the UE.
RSCP is only valid in UTRA cells and used during RRC_IDLE Inter-RAT or RRC_CONNECTED Inter-Rat state, i.e during LTE to UMTS reselection or handover.